noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A larva of some sponges that has equal numbers of both flagellate and nonflagellate cells separated from each other on opposite sides of the blastula.

Etymology

From amphi- + blastula.

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