Words Starting With "O"

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Odontalgy

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Odontalgia refers to toothache or dental pain. It is a medical term used to describe a sharp, shooting, or dull pain in the teeth, particularly in response to stimulation or pressure.

Odontaspididae

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Odontaspididae is a family of sharks, commonly known as reef sharks, found in tropical and subtropical waters around the world. They are relatively small, with most species reaching a maximum length of around 1-2 meters (3-6 feet) and weighing up to 10-20 kilograms (22-44 pounds).

Odontaspis

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Odontaspis is a genus of sharks in the family Lamnidae. It is a rare and uncommon genus, with only a few fossil species known from the Cenozoic period. The most famous species is Odontaspis ferox, also known as the sand tiger shark, which is a common species of shark found in temperate and tropical waters around the world.

Odontectomies

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Odontectomies refer to the surgical removal of teeth. The term is derived from the Greek words "odous" meaning tooth and "ektome" meaning removal.

Odontectomy

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A surgical operation to remove all of one's teeth, usually done as a medical necessity due to severe tooth decay, gum disease, or other oral health issues.

Odontiasis

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Odontiasis is a medical term that refers to the inflammation of a tooth, typically caused by dental caries (tooth decay) or other forms of tooth damage. It can also be used more broadly to describe any inflammation or infection of the dental pulp, which is the soft tissue inside a tooth that contains nerves and blood vessels.

Odontidae

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The Odontidae family refers to a group of clams, a type of marine bivalve mollusk that belongs to the order Eulamellibranchia. They are characterized by a tooth-like structure called a radula, which they use to scrape food particles from rocks and other surfaces.

Odontitis

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Odontitis is a medical term that refers to inflammation of the tooth socket or the surrounding bone. It can be caused by a number of factors, including tooth extraction, trauma, or bone disease. If left untreated, odontitis can lead to infection and dental abscesses.

Odontoblast

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Odontoblasts are specialized cells found in the pulp of teeth, which are responsible for producing dentin. Dentin is a layer of tissue beneath the enamel that helps to cushion and protect the pulp (which contains nerves and blood vessels) from external stimuli.

Odontoblastic

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Odontoblastic refers to the cells found in the pulp of teeth. The odontoblasts are specialized cells responsible for the formation of dentin, a layer of tissue beneath the enamel of the tooth.

Odontoblasts

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Odontoblasts are cells found in the dentin of teeth that produce dentin, a thick layer of bony tissue beneath the enamel. They are responsible for producing dentin to repair and fill cavities in the tooth, and their activity is stimulated by stimuli such as bacteria-laden plaque.

Odontocete

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Odontocete refers to a suborder of cetaceans, which includes toothed whales, dolphins, and porpoises. Specifically, it refers to those cetaceans that have teeth for catching and eating prey, as opposed to baleen whales, which have a filter-feeding system.

Odontocetes

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Odontocetes refers to a suborder of cetaceans, commonly known as toothed whales or odontocetes. This group includes species such as orcas, sperm whales, and dolphins, which are characterized by having teeth rather than baleen plates in their mouths.

Odontoceti

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Odontoceti is a suborder of cetaceans that includes toothed whales, dolphins, and porpoises. The term "odontoceti" comes from the Greek words "odo"meaning tooth and "kētē" meaning whale. Odontoceti are characterized by the presence of teeth, unlike baleen whales, which have plates instead of teeth. They are found in oceans all around the world and are known for their intelligence, social behavior, and playful nature.

Odontodynia

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Odontodynia is a chronic pain or recurring toothache caused by dental problems, such as tooth decay, gum disease, or cracks in the teeth. It can also be a symptom of a more serious underlying issue, such as a nerve disorder or a sinus infection.

Odontogenesis

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Odontogenesis is the process of tooth development and formation, from the initiation of tooth buds to the eruption of a fully formed tooth into the oral cavity. It is a complex process that involves the coordinated action of multiple cell types, including odontoblasts, ameloblasts, and ectomesenchymal cells. Odontogenesis can be divided into three stages: the initiation stage, the morphodifferentiation stage, and the histodifferentiation stage. During initiation, the tooth bud forms and begins to differentiate into the dental papilla and dental follicle. During morphodifferentiation, the tooth bud continues to develop and differentiate into the various tissues that make up the tooth, including the enamel, dentin, and pulp. During histodifferentiation, the tooth further develops and matures into a fully formed tooth that is ready to erupt into the oral cavity.

Odontogenic

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Odontogenic refers to something that is related to or originating from the teeth. In medicine, odontogenic refers to a condition or disease that is caused by a problem in the teeth or surrounding tissues, such as an abscess or cyst. For example, odontogenic infection refers to an infection that starts in the teeth or gums.

Odontogeny

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Odontogeny refers to the process of tooth development and formation in the mouth. It is the formation of teeth from embryonic tissue, or the growth and maturation of teeth from the time they begin to erupt in the mouth until they reach their fully developed state.

Odontoglossum

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Odontoglossum is a genus of orchids, commonly known as tongue orchids, characterized by their long, tongue-shaped petals. They are native to the Americas and are known for their showy, long-lasting flowers. The name "Odontoglossum" comes from the Greek words "odous" meaning tooth and "glossa" meaning tongue, referring to the shape of the petals.

Odontognathae

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Odontognathae refers to the suborder of mammals, specifically the order Rodentia, which includes rodents characterized by their teeth, particularly their larvae, which are prominent and used for gnawing and grinding food.

Odontographic

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Odontographic refers to the study or charting of teeth, especially in relation to dental morphology, anatomy, or pathology. It can also refer to a graphic or diagrammatic representation of the teeth, used in diagnostics or instructional purposes.

Odontography

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Odontography refers to the study of teeth, including their structure, development, and diseases. It is a branch of dentistry that involves the examination, diagnosis, and treatment of disorders and defects affecting the teeth and surrounding tissues.

Odontoid

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The odontoid process is a small projection of bone that extends from the axis of the spine. It is part of the dens or peg-like structure that consists of the dens and the surrounding bone, which forms the upper part of the spine. The odontoid process is responsible for anchoring the atlanto-occipital joint to the C2 vertebra. <br><br>In other words, it is a small bony structure at the top of the spine, attached to the C2 vertebra, that helps anchor the skull to the spine.

Odontolcae

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Odontolcae is a rare or obsolete word that refers to a type of tooth or dental instrument. Specifically, it can mean a small, curved instrument used for polishing or cleaning between the teeth.

Odontolite

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Odontolite is a rare or extinct rock that is composed primarily of phosphate minerals, often containing fossilized teeth and bones. The term "odontolite" was coined by the French geologist Henri Coquand in the mid-19th century, and is derived from the Greek words "odous" (tooth) and "lithos" (rock).

Odontologic

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Relating to the study of teeth and the diseases or disorders affecting the teeth, gums, and other parts of the mouth.

Odontological

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Relating to the study of teeth and the mouth, treating or dealing with dental problems.

Odontologist

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An odontologist is a dental specialist who focuses on the diagnosis, treatment, and prevention of disorders and diseases related to the teeth, mouth, and jaw. The term "odontologist" is often used interchangeably with "dentist", but while all odontologists are trained as dentists, not all dentists are necessarily odontologists.

Odontologists

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Odontologists are dentists who specialize in the diagnosis, treatment, and prevention of dental and oral diseases. The term "odontologist" is sometimes used interchangeably with "dental specialist" or "oral surgeon," but generally, odontologists focus on the non-surgical aspects of dentistry.

Odontology

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Odontology refers to the scientific study of teeth, including their structure, development, growth, and relations to surrounding tissues and structures. It also encompasses the diagnosis, prevention, and treatment of diseases and disorders affecting the teeth and surrounding tissues, such as tooth decay, gum disease, and tooth loss.

Odontoloxia

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Odontoloxia is a rare or obsolete word that refers to a mouth or jaw-like cavity or opening. It can also mean a type of fold or crevice in the mouth or jaw. The term is derived from the Greek words "odous" meaning tooth and "loxos" meaning crooked or oblique.

Odontoma

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Odontoma is a type of benign tumor that develops in the jawbone or surrounding tissues, typically affecting the teeth or gums. It is a rare condition that usually occurs in childhood or adolescence. The tumor is made up of dental tissue, such as enamel, dentin, and pulp, and can cause a range of symptoms, including tooth loss, facial swelling, and pain. Odontomas are usually treated with surgery, and the prognosis is generally good.

Odontopathic

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Odontopathic refers to the branch of dentistry that deals with the treatment of dental diseases and disorders, typically through the use of medications or other therapeutic methods rather than surgery.

Odontopathy

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Odontopathy is a medical term that refers to diseases or disorders of the teeth. It is a broad term that encompasses various conditions that affect the teeth, including dental caries, pulpitis, periodontitis, and other dental health issues. The term "odontopathy" can also refer to the study of the causes, diagnosis, and treatment of diseases related to the teeth and surrounding tissues.

Odontophora

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Odontophora refers to a genus of segmented worms, specifically a type of marine nematode that is characterized by the presence of jaws or teeth.

Odontophore

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The odontophore is a tongue-like structure found in some mollusks, such as snails and slugs, which they use to rasp and tear their food into smaller pieces before swallowing. It is essentially a modified radula, a tooth-like structure found in the mouthparts of many animals, and is used for gripping and manipulating food particles.