copperas (English, noun)
expansion: copperas (usually uncountable, plural copperases)
Senses:
glosses: Iron(II) sulfate.
tags: uncountable
usually
glosses: An obsolete sulphate compound with one of the three metals, zinc, copper or iron.
tags: uncountable
usually
Forms:
form: copperases
tags: plural
form: coperas
tags: alternative