Bible Dictionaries
Monatomic

Webster's Dictionary

(1):

(adv.) Consisting of, or containing, one atom; as, the molecule of mercury is monatomic.

(2):

(adv.) Having the equivalence or replacing power of an atom of hydrogen; univalent; as, the methyl radical is monatomic.

Bibliography Information
Webster, Noah. Entry for 'Monatomic'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​m/monatomic.html. 1828.