Bible Dictionaries
Tetratomic

Webster's Dictionary

(1):

(a.) Consisting of four atoms; having four atoms in the molecule, as phosphorus and arsenic.

(2):

(a.) Having a valence of four; quadrivalent; tetravalent; sometimes, in a specific sense, having four hydroxyl groups, whether acid or basic.

Bibliography Information
Webster, Noah. Entry for 'Tetratomic'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​t/tetratomic.html. 1828.