[muh-lek-yuh-ler] /məˈlɛk yə lər/
of or relating to or caused by :
of or relating to molecules: molecular hydrogen
(logic) (of a sentence, formula, etc) capable of analysis into atomic formulae of the appropriate kind
1823, from molecule + -ar or else from French moléculaire or Modern Latin molecularis. Molecular biology first attested 1950.
molecular mo·lec·u·lar (mə-lěk’yə-lər)
Of, relating to, or consisting of molecules.
noun 1. the branch of astronomy dealing with the study of molecules in space.
noun, Physics. 1. a stream of molecules freed from a substance, usually a salt, by evaporation and then passed through a narrow slit for focusing, for investigating the properties of nuclei, atoms, and molecules. noun 1. (physics) a parallel beam of molecules that are at low pressure and suffer no interatomic or intermolecular collisions
noun 1. the branch of biology that deals with the nature of biological phenomena at the molecular level through the study of DNA and RNA, proteins, and other macromolecules involved in genetic information and cell function, characteristically making use of advanced tools and techniques of separation, manipulation, imaging, and analysis. noun 1. the study of […]
noun 1. the changes in the amino acid sequences of proteins that take place during evolution and speciation, and from which the dates of branchings of taxonomic groups can be deduced. noun the rate at which nucleotide (amino acid) substitutions occur in a given DNA (protein) sequence