lacking a definite, separable lid, as some spore cases
Word origin
in-2 + operculate
inoperculate in American English
(ˌinouˈpɜːrkjəlɪt, -ˌleit)
adjective
Zoology & Botany
having no operculum
Word origin
[1825–35; in-3 + operculate]This word is first recorded in the period 1825–35. Other words that entered Englishat around the same time include: breakdown, relativity, runway, self-help, torque