[ muh-lek-yuh-ler ]
/ məˈlɛk yə lər /


of or relating to or caused by molecules: molecular structure.

Origin of molecular

First recorded in 1815–25; molecule + -ar1

Related forms

mo·lec·u·lar·ly, adverbmul·ti·mo·lec·u·lar, adjectivenon·mo·lec·u·lar, adjectivesub·mo·lec·u·lar, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for molecular

British Dictionary definitions for molecular


/ (məʊˈlɛkjʊlə, mə-) /


of or relating to moleculesmolecular hydrogen
logic (of a sentence, formula, etc) capable of analysis into atomic formulae of the appropriate kind

Derived Forms

molecularity (məʊˌlɛkjʊˈlærɪtɪ), nounmolecularly, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for molecular


[ mə-lĕkyə-lər ]


Of, relating to, or consisting of molecules.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.