What does "gregarine" mean?

Gregarine: An order of Protozoa, allied to the Rhizopoda, and parasitic in other animals, as in the earthworm, lobster, etc. When adult, they have a small, wormlike body inclosing a nucleus, but without external organs; in one of the young stages, they are amoebiform; -- called also Gregarinida, and Gregarinaria.

Additional senses

  1. 2.Of or pertaining to the Gregarinæ. -- n. One of the Gregarinæ.

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