colcothar (English, noun)
expansion: colcothar (countable and uncountable, plural colcothars)
Senses:
topics: chemistry
natural-sciences
organic-chemistry
physical-sciences
glosses: Polishing rouge; a reddish-brown oxide of iron, used in polishing glass, and also as a pigment.
tags: countable
obsolete
uncountable
Forms:
form: colcothars
tags: plural