Definitions

guā guanidine

Etymology phono-semantic

organic compound

Semantic: Phonetic:

About

is a phono-semantic compound character: the left-side semantic radical (the 'flesh' radical) indicates a body part or, in its chemical usage, an organic compound, while the right-side phonetic element (guā) supplies the pronunciation. The character was created in modern times as a phonetic borrowing, specifically coined to transcribe the name of the organic nitrogenous base guanidine into Chinese. As a specialized scientific term, functions exclusively within the realm of organic chemistry and medicine; it appears only in chemical formulas, medical texts, and the technical literature on organic nitrogenous compounds, carrying no meaning beyond that narrow context.