gram molecule

noun

, Chemistry.

1. that quantity of a substance whose weight in grams is numerically equal to the molecular weight of the substance.

gram molecule

/ ˌɡræmˈməʊlə /

noun

1. an amount of a compound equal to its molecular weight expressed in grams: now replaced by the mole See mole 4

Derived Forms

• ˌgram-moˈlecular, adjective

Other Words From

• gram-mo·lec·u·lar [gram-m, uh, -, lek, -y, uh, -ler], gram-mo·lar [gram-, moh, -ler], adjective

Word History and Origins

Origin of gram molecule¹

First recorded in 1890–95

Example Sentences

Oxygen, to which we chemists assign the formula O2, meaning that its molecule consists of two atoms of oxygen, has a weight of 32 grams per gram molecule.

From Project Gutenberg