Try Our Apps


Famous Last Words


[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
molecularly, adverb
multimolecular, adjective
nonmolecular, adjective
submolecular, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for molecular
Contemporary Examples
Historical Examples
  • The figures that are necessary to use in connection with molecular Substance are likely to stagger the imagination.

    Dynamic Thought William Walker Atkinson
  • He familiarised the world with the conception of molecular force.

  • As if by a giant plow, the valley was torn and rent in great streaks by the pale violet rays of the molecular force.

    Islands of Space John W Campbell
  • There are plenty of molecular motions which do not exhibit this two-sidedness.

  • The molecular theory is, unquestionably, tenable under present conditions.

    Steam Steel and Electricity James W. Steele
British Dictionary definitions for molecular


/məʊˈlɛkjʊlə; mə-/
of or relating to molecules: molecular hydrogen
(logic) (of a sentence, formula, etc) capable of analysis into atomic formulae of the appropriate kind
Derived Forms
molecularity (məʊˌlɛkjʊˈlærɪtɪ) noun
molecularly, 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
Cite This Source
Word Origin and History for molecular

1823, from molecule + -ar or else from French moléculaire or Modern Latin molecularis. Molecular biology first attested 1950.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
molecular in Medicine

molecular mo·lec·u·lar (mə-lěk'yə-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.
Cite This Source

Word of the Day

Difficulty index for molecular

Some English speakers likely know this word

Word Value for molecular

Scrabble Words With Friends

Nearby words for molecular