Crossword clue: an egg case, especially those of many kinds of mollusks, and of some insects, as the cockroach. cf. ooecium.

The most common answer is ooetheca (8 letters).

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

ooetheca 8 letters web-def

An egg case, especially those of many kinds of mollusks, and of some insects, as the cockroach. Cf. Ooecium.

ootheca 7 letters web-def

An egg case, especially those of many kinds of mollusks, and of some insects, as the cockroach. Cf. Ooecium.