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1. (n.) molecule
the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound.
2. molecule
a quantity of a substance, the weight of which is numerically equal to the molecular weight; gram molecule.
3. molecule
any very small particle.
Etymology: (1785–95; earlier molecula < NL, = L mōlē(s) mass +-cula -cule1)
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| Definition of 'molecule' |
Princeton's WordNet |
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1. (noun) molecule
(physics and chemistry) the simplest structural unit of an element or compound
2. (noun) atom, molecule, particle, corpuscle, mote, speck
(nontechnical usage) a tiny piece of anything
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| Definition of 'molecule' |
Webster Dictionary |
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1. (noun) molecule
one of the very small invisible particles of which all matter is supposed to consist
2. (noun) molecule
the smallest part of any substance which possesses the characteristic properties and qualities of that substance, and which can exist alone in a free state
3. (noun) molecule
a group of atoms so united and combined by chemical affinity that they form a complete, integrated whole, being the smallest portion of any particular compound that can exist in a free state; as, a molecule of water consists of two atoms of hydrogen and one of oxygen. Cf. Atom
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| Definitions of 'molecule' |
The Nuttall Encyclopedia |
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1. molecule
the smallest particle of which an element or a compound body is composed, and that retains all the properties in a free state.
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Sense: the group of atoms that is the smallest unit into which a substance can be divided without losing its basic nature or identity.
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 Afrikaans: molekuul |
 Arabic: جُزَيء |
 Bulgarian: молекула |
 Brazilian: molécula |
 Czech: molekula |
 German: das Molekül |
 Danish: molekyle |
 Greek: μόριο |
 Spanish: molécula |
 Estonian: molekul |
 Farsi: مولکول |
 Finnish: molekyyli |
 French: molécule |
 Hebrew: מוֹלֵיקוּלָה |
 Hindi: अणु |
 Croatian: molekula |
 Hungarian: molekula |
 Indonesian: molekul |
 Icelandic: sameind, mólekúl |
 Italian: molecola |
 Japanese: 分子 |
 Korean: 분자 |
 Lithuanian: molekulė |
 Latvian: molekula |
 Malay: molekul |
 Dutch: molecule |
 Norwegian: molekyl |
 Polish: molekuła, cząsteczka |
 Persian: مولکول |
 Pashto: ماليكول |
 Portuguese: molécula |
 Romanian: moleculă |
 Russian: молекула |
 Slovak: molekula |
 Slovenian: molekula |
 Serbian: molekul |
 Swedish: molekyl |
 Thai: โมเลกุล |
 Turkish: molekül |
 Taiwanese: 分子 |
 Ukrainian: молекула |
 Urdu: کسی کیمائی مرکب کی اقل بن |
 Vietnamese: phân tử |
 Chinese: 分子 |
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Definitions of molecule 
