QCalso: キューシーFreq.FrequencyTop 50,000Meanings1nounquality control; QCAbbreviation of 品質管理 (ひんしつかんり). Used in manufacturing, engineering, and business to refer to processes ensuring product quality.See also: 品質管理この工こう場じょうではQCが徹てっ底ていされている。QC is thoroughly implemented in this factory.QCサークル活かつ動どうに