molecular

[muh-lek-yuh-ler]
adjective
of or pertaining to or caused by molecules: molecular structure.

Origin:
1815–25; molecule + -ar1

molecularly, adverb
multimolecular, adjective
nonmolecular, adjective
submolecular, adjective
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World English Dictionary
molecular (məʊˈlɛkjʊlə, mə-)
 
adj
1.  of or relating to molecules: molecular hydrogen
2.  logic (of a sentence, formula, etc) capable of analysis into atomic formulae of the appropriate kind
 
molecularity
 
n
 
mo'lecularly
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

molecular
1823, from molecule. Molecular biology first attested 1950.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

molecular mo·lec·u·lar (mə-lěk'yə-lər)
adj.
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.
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Example sentences
Bring in modern microscopic and molecular evidence, and you can trace the
  similarities still further back.
All stuff, whether natural or unnatural, is at the microscopic level molecular.
The question of its three-dimensional molecular structure interested perhaps a
  dozen people.
Choose from molecular earrings, a caffeine molecule necklace, or a circuit
  board pendant.
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