The Chinese word **塑胶 (sùjiāo)** is a compound noun formed through semantic combination, where the first character **塑 (sù)**, meaning "to mold" or "plastic," denotes the malleable, shapeable quality of the material, and the second character **胶 (jiāo)**, meaning "glue" or "rubber," indicates its adhesive or elastic, polymer-like substance. Together, they create a precise term for "plastic" or "synthetic polymer," reflecting a material that can be shaped and has a rubbery or cohesive nature, typical of early plastics like celluloid or bakelite. This formation follows a common Chinese lexical pattern where two related morphemes combine to define a new, more specific concept.