Definitions

huō a kind of tool

Etymology phono-semantic

metal

Semantic: Phonetic:

About

is a specialized technical verb used in metallurgy and machining, meaning to countersink or ream a hole. The traditional form is a phono-semantic compound with the semantic radical (metal) on the left, indicating metalworking, and the phonetic (hū) on the right. The simplified form replaces the traditional radical with its simplified counterpart , retaining the same phonetic. Lacking any ancient literary or philosophical history, it is a modern engineering and manufacturing term. Its formation reflects the practical adaptation of the writing system to name specific industrial actions by combining a material classifier with a phonetic cue.