exumbrella definition

  • noun:
    • The aboral or external area of umbrella of an acaleph, as a jelly-fish; the upper component or outside the bell once the animal swims: distinguished through the adoral part, or adumbrella.
    • The aboral or exterior surface of this umbrella of an acaleph, as a jelly-fish; top of the part or outside the bell as the creature swims: distinguished through the adoral part, or adumbrella.
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