English

pseudoperidium

From pseudo- + peridium.

Ancient Greek ψεύδω ‘to lie’

Ancient Greek ψευδής ‘false, lying’

Ancient Greek πηρίδιον ‘little pouch’

Today it means

noun A membranous layer that surrounds the aeciospores in rust fungi.

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

Etymograph / pseudoperidium