molecule

Từ điển Oxford Advanced Learner 8th

mol·ecule [molecule molecules] BrE [ˈmɒlɪkjuːl] NAmE [ˈmɑːlɪkjuːl] noun (chemistry)
the smallest unit, consisting of a group of atoms, into which a substance can be divided without a change in its chemical nature
•A molecule of water consists of two atoms of hydrogen and one atom of oxygen.
Derived Word: ↑molecular

Word Origin:
late 18th cent.: from French molécule, from modern Latin molecula, diminutive of Latin moles ‘mass’.

Example Bank:
•the molecules in the crystal
•the number of atoms in a molecule
•two molecules of hydrogen

• Từ đồng nghĩa / Synonyms:
  atom, particle, corpuscle, mote, speck