English

isothiosemicarbazide

From iso- + thiosemicarbazide.

Ancient Greek ἴσος ‘equal’

English iso-

Today it means

noun The isomer of thiosemicarbazide R-S-C(=NH)-NH-NH2 (R=H), or any of its derivatives (R=alkyl or aryl radical)

Language periods are conventional ranges, not dates for this word.

Etymograph / isothiosemicarbazide