"Arachnids" Natural Recordings by Native Speakers
Arachnids are a group of eight-legged arthropods that have a body divided into two parts: the cephalothorax and the abdomen. They do not have antennae, as opposed to insects, and they generally have chelicerae (jaws) and pedipalps (claws). Examples of arachnids include spiders, scorpions, ticks, and mites.
Arachidonate refers to arachidonic acid, an omega-6 fatty acid that is a crucial component of cell membranes and serves as a precursor for the production of prostaglandins, leukotrienes, and other bioactive compounds involved in inflammation, blood clotting, and other physiological processes.
Arachidonic acid is an omega-6 fatty acid that is found in animal and vegetable fats. It is a polyunsaturated fatty acid (PUFA) and plays a role in the production of prostaglandins, which are hormone-like substances involved in inflammation, pain, and fever. Arachidonic acid can also be converted into other compounds that contribute to blood clotting and cell growth.
Arachis refers to a genus of plants in the pea family (Fabaceae), best known for its economic importance as the source of peanuts (Arachis hypogaea). The term "arachis" is derived from the Greek word "arákhis," which means "peanut." These legumes are native to South America and are widely cultivated for their edible seeds, which are rich in protein and used in various culinary applications.
Arachne is a figure from Greek mythology known for her exceptional skill in weaving. She was a mortal woman who challenged the goddess Athena to a weaving contest, boasting that her skills were superior. When Athena accepted the challenge and disguised herself as an old woman, Arachne wove a tapestry that depicted the gods' arrogance and mistreatment of mortals. Athena, impressed but angered by Arachne's pride, then wove a tapestry showcasing the gods' power and majesty. In the end, Athena won the contest and, out of anger, turned Arachne into a spider, condemning her to weave forever. The word "arachne" is sometimes used metaphorically to refer to a skilled weaver or, more generally, a person with great talent in a particular craft.
Arachnid is a term that refers to a group of eight-legged invertebrate animals, including spiders, scorpions, ticks, mites, and others. They are part of the subphylum Chelicerata and are characterized by having two main body parts (the cephalothorax and the abdomen), no wings or antennae, and venomous fangs used for capturing prey.
Arachnida is a class of invertebrate animals that includes spiders, scorpions, ticks, mites, and other similar creatures. They have eight legs, two body parts (the cephalothorax and abdomen), and no wings or antennae. Arachnids are part of the larger group called arthropods, and they are known for their predatory or parasitic lifestyles.
Arachnidan refers to a subphylum of arthropods that includes spiders, scorpions, ticks, mites, and other eight-legged creatures. They are characterized by having two main body parts (the cephalothorax and abdomen), four pairs of legs, and usually no wings or antennae. Arachnids are an important part of the animal kingdom and can be found in various habitats all over the world.
"Arachnidial" is an adjective used to describe something related to or resembling an arachnid, which is a group of eight-legged invertebrates that includes spiders, scorpions, ticks, and mites. So, if something is arachnidial, it has characteristics or is similar to these creatures.
Arachnitis is a medical term referring to an inflammation of the spider veins, particularly in the context of venous insufficiency or varicose veins. It can cause discomfort, swelling, and other symptoms in the affected area.
Arachnodactyly is a medical condition characterized by abnormally long and slender fingers or toes, resembling those of a spider. It is often associated with Marfan syndrome, a genetic disorder affecting the connective tissue.
Arachnoid refers to something relating to or resembling a spider's web, or referring to a membrane or layer that covers the brain and spinal cord, particularly the arachnoid mater in the central nervous system.
Arachnoidal refers to something related to or resembling the arachnoid membrane, which is one of the three membranes (meninges) that surround and protect the brain and spinal cord. It is characterized by its spiderweb-like appearance, with delicate trabeculae (fibrous strands) separating it from the other meningeal layers.
The arachnoidea is a layer of tissue in the human brain and spinal cord. It is part of the meninges, which are the protective coverings of the central nervous system. The term "arachnoidea" comes from its spider-web-like appearance, as it has numerous delicate filaments that extend between its folds and attach to the pia mater, another layer of the meninges. It helps to cushion and protect the brain and spinal cord while also providing a route for cerebrospinal fluid to flow.
Arachnoiditis is a medical condition characterized by the inflammation of the arachnoid, a thin membrane that covers and protects the brain and spinal cord. This inflammation can cause scarring and adhesive formations, leading to pain, neurological symptoms, and potential nerve damage. It is often caused by infections, injuries, surgeries, or the use of certain medications or contrast dyes during medical procedures. Treatment typically involves pain management, physical therapy, and sometimes surgical intervention.
The arachnoids are a layer of membranes that surround and protect the brain and spinal cord. They are part of the central nervous system's meninges, which also include the pia mater and dura mater. The arachnoid mater is named so because it has a spiderweb-like appearance due to the delicate, thread-like structures called arachnoid villi that project into the space between it and the pia mater. These villi help in the circulation of cerebrospinal fluid.
Arachnological refers to the scientific study of spiders and other arachnids, such as scorpions, mites, and ticks. It involves the classification, behavior, ecology, anatomy, and evolution of these creatures.