noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The lower or posterior half of the theca of a thecate protist such as a diatom or dinoflagellate

Synonyms

All synonyms

epitheca

Etymology

From hypo- + theca.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.