Trachymedusæ

Definitions

  • Webster's Revised Unabridged Dictionary
    • n. pl Trachymedusæ (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.
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Etymology

Webster's Revised Unabridged Dictionary
NL., fr.Gr. rough + medusa,