Definition of unoperculate in English:

unoperculate

adjective

Zoology
rare
  • = unoperculated.

Origin

Late 19th century; earliest use found in Ogilvie's Imperial Dictionary. From un- + operculate, after scientific Latin inoperculatus inoperculate.

Pronunciation

unoperculate

/(ˌ)ʌnəʊˈpəːkjʊlət//(ˌ)ʌnɒˈpəːkjʊlət/