trachymedusae Meaning, Definition & Usage

Tra`chy*me*du"sæ noun plural (Also<
  • Trachymedusae
  • Trachymedusæ
)
Etymology
NL., fr.Gr. rough + medusa.
Definitions
  1. (Zoöl.) A division of acalephs in which the development is direct from the eggs, without a hydroid stage. Some of the species are parasitic on other medusæ.

Webster 1913