Bible Dictionaries
Phosphonium

Webster's Dictionary

(n.) The hypothetical radical PH4, analogous to ammonium, and regarded as the nucleus of certain derivatives of phosphine.

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