the remainder after a part has been removed

a substance that remains after the purification of a substance

शुद्धिकरण के बाद बचा हुआ पदार्थ

English Usage: After the distillation process, the residuum contained various impurities.

Hindi Usage: कृत्रिम संवहन प्रक्रिया के बाद, बचे हुए अवशेष में विभिन्न अशुद्धियाँ थीं।