"Bivalents" Natural Recordings by Native Speakers
Bivalents are a type of chromosome pair in which each member of the pair is composed of two chromatids. This term is often used in genetics and cytogenetics.
Bituminoid refers to something that is closely related to or resembling bitumen, a type of sticky, tar-like substance derived from petroleum or natural asphalt. Bituminoids are typically used to describe rocks or minerals that have similar composition or properties to bitumen, or materials that are derived from or resemble bitumen in terms of their chemical or physical properties.
Bituminosis is a type of lung disease caused by inhaling bitumen, a sticky and viscous liquid derived from crude petroleum, and is commonly associated with exposure to bituminous coal. It can be classified into two main forms: anthracotic bituminosis and asbestosis. Anthracotic bituminosis refers to the accumulation of carbon in the lungs due to the prolonged inhalation of bitumen and other forms of carbon-bearing dust, whereas asbestosis is a result of the inhalation of asbestos fibres, often present in bituminous coal. The symptoms of bituminosis include shortness of breath, coughing, and chest pain.
Bituminous refers to a type of rock or coal that is rich in asphalt or tar-like substances. It is often used to describe a type of coal that is used to make pavement, roofing, and other materials.
Biurate is a type of ion forming part of the body's waste elimination processes. Specifically, it is the conjugate of uric acid, which is the main end product of purine metabolism in humans. Biurate is formed when uric acid reacts with hydrogen ions in the kidneys to produce a soluble form that can be excreted in the urine.
The biuret test is a chemical test used to detect the presence of peptides and proteins in a solution. It is commonly used in biochemistry and molecular biology to detect the presence of proteins in a sample. The test is based on the property of certain metals, such as copper, to form a complex with the peptide bond found in peptides and proteins. When a protein or peptide sample is added to a solution containing a biuret reagent, a blue-purple color develops, indicating the presence of the peptide or protein. The test is highly specific and can detect very small quantities of peptides and proteins, making it a valuable tool in various biochemical and molecular biological applications.
Bivalence refers to the state of having two opposing or contradictory values, meanings, or possibilities. In philosophy and logic, bivalence is often used to describe a situation where an affirming statement (e.g., "This sentence is true") and its negation (e.g., "This sentence is false") cannot both be true at the same time. In this sense, bivalence implies a binary opposition between two values, rather than multiple or intermediate possibilities. In everyday life, bivalence can also describe situations where two opposing forces or perspectives exist, such as in a conflict or a dilemma, where one must choose between two contradictory options.
Bivalency refers to the property of having two valencies or combining powers, typically in chemistry, where an atom or group can form two bonds with other atoms or molecules. In philosophy, bivalency refers to the idea that a statement or concept can have two contradictory or opposing meanings at the same time.
Having or relating to two distinct alternatives or properties; capable of having two values, characteristics, or functions.