The word biconcave is spelled as /baɪˈkɒnkāv/. It is formed by joining two roots, ‘bi-’ meaning two and ‘concave’ pertaining to a surface that curves inward. The word biconcave is used to describe the shape of human red blood cells which are flattened on both sides resembling a disc. The spelling of biconcave is important in scientific literature where it is used to describe various anatomical structures in biology and medical sciences.
Biconcave is an adjective that describes a specific shape or form, typically referring to a lens, lens-shaped structure, or a cell. The term "biconcave" originates from the Latin words "bi," meaning two, and "concavus," meaning hollowed or curved inward.
In optics, a lens or lens-shaped structure that is biconcave has two surfaces that are both concave, meaning they curve inward. This shape causes the lens to be thinner in the middle and thicker at the edges. Biconcave lenses are commonly used in eyeglasses or contact lenses to correct nearsightedness. The inward curvature helps to diverge the light entering the lens and corrects the focal point to align properly on the retina of the eye.
Moreover, in the context of biology, the term "biconcave" can also describe the shape of certain cells, particularly red blood cells. Biconcave red blood cells have a unique disc-like structure with a concave shape on both sides. This specific shape provides the cells with a larger surface area, which aids in efficient gas exchange and enables the cells to squeeze through narrow capillaries easily.
In summary, "biconcave" refers to a lens or cell structure that is curved inward on both sides. This term is commonly used in optics to describe certain lens shapes, as well as in biology to characterize the distinctive shape of red blood cells.
Concave on two sides, noting especially a form of lens.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
concave on both sides
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "biconcave" is derived from the combination of two roots: "bi-" and "concave".
1. "Bi-" is a prefix derived from the Latin word "bis", meaning "two" or "twice". It is used in English to indicate "two" or "having two" of something.
2. "Concave" comes from the Latin word "concavus", meaning "hollow" or "rounded inward". It refers to a surface or shape that curves inward or is depressed.
When these two roots are combined, the word "biconcave" is formed to describe a shape or structure that has two concave surfaces, meaning it curves inward on both sides.