the bond formed by the sharing of a pair of electrons by two atoms.
a type of chemical bond involving the sharing of electrons between atoms in a molecule, esp the sharing of a pair of electrons by two adjacent atoms
covalent bond n.
A chemical bond formed by the sharing of one or more electrons, especially pairs of electrons, between atoms.
A chemical bond formed when electrons are shared between two atoms. Usually each atom contributes one electron to form a pair of electrons that are shared by both atoms. See more at coordinate bond, double bond, polar bond.
covalent bond [(koh-vay-luhnt)]
A chemical bond in which two atoms share some of their valence electrons, thereby creating a force that holds the atoms together.
Note: Many molecules in living systems are held together by covalent bonds.
[koh-vey-luh ns] /koʊˈveɪ ləns/ noun, Chemistry. 1. the number of electron pairs that an atom can share with other atoms.
[koh-vair-ee-uh ns] /koʊˈvɛər i əns/ noun, Statistics. 1. the expectation or mean value of the variable formed by multiplying the differences obtained by subtracting two given variates from their respective means; the product of the standard deviations of two given variates and the coefficient of correlation between them. /kəʊˈvɛərɪəns/ noun 1. (statistics) a measure of […]
[koh-vair-ee-uh nt] /koʊˈvɛər i ənt/ adjective, Mathematics. 1. (of one magnitude with respect to another) varying in accordance with a fixed mathematical relationship: The area of a square is covariant with the length of a side.
[koh-vair-ee-it, ‐eyt] /koʊˈvɛər i ɪt, ‐ˌeɪt/ noun, Statistics. 1. a continuous control variable that is observed rather than manipulated but can affect the outcome of an experiment or study: You need to adjust for education level and other covariates in interpreting the results.