1794, "extremely minute particle," from French molécule (1670s), from Modern Latin molecula, diminutive of Latin moles "mass, barrier" (see mole (3)). A vague meaning at first; the vogue for the word (used until late 18c. only in Latin form) can be traced to the philosophy of Descartes. First used of Modern Latin molecula in modern scientific sense by Amedeo Avogadro (1811).
实用例句
1. So tell me what this molecule does that makes it special.
那么告诉我这个分子有何作用而使其与众不同。
来自柯林斯例句
2. The chemical structure of this particular molecule is very unusual.
这个特殊分子的化学结构很不寻常。
来自柯林斯例句
3. A molecule of water consists of two atoms of hydrogen and one atom of oxygen.
水分子由两个氢原子和一个氧原子构成。
来自《权威词典》
4. A methane molecule is composed of one carbon atom attached to four hydrogens.
甲烷分子由1个碳原子与4个氢原子构成。
来自柯林斯例句
5. The molecule contains four carbon atoms arranged in a ring with a triple bond between two of them.