mol‧e‧cule /ˈmɒlɪkjuːl $ ˈmɑː-/
noun [countable][
Date: 1700-1800;
Language: French;
Origin: molécule, from Latin moles 'mass']
the smallest unit into which any substance can be divided without losing its own chemical nature, usually consisting of two or more atoms:
The molecules of oxygen gas contain just two atoms.—molecular /məˈlekjələ, məˈlekjʊlə $ -ər/
adjective:
molecular structure [TahlilGaran] Dictionary of Contemporary English ▲