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单词 molecule
释义 mol·e·cule
\ˈmälə̇ˌkyül, -lēˌ-\ noun
(-s)
Etymology: French molécule, from New Latin molecula, diminutive of Latin moles mass — more at mole (structure)
1.
 a. : a unit of matter that is the smallest particle of an element or chemical combination of atoms (as a compound) capable of retaining chemical identity with the substance in mass
  < a few elements (as helium and neon) have monatomic molecules >
  < the viruses are one kind of giant molecules — Linus Pauling >
  — see avogadro's law; compare ion, radical 5
 b. : a quantity proportional to the molecular weight; especially : mole VII
2. : a tiny bit : fraction, fragment
 < every tone … is a molecule of music — Henry Miller >
 < a molecule of political honesty — Time >
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更新时间:2024/11/12 3:21:20