Zooid

1. n. One of the individual animals in a composite group, as of Anthozoa, Hydroidea, and Bryozoa; — sometimes restricted to those individuals in which the mouth and digestive organs are not developed.
2. a. Pertaining to, or resembling, an animal.
3. n. An organic body or cell having locomotion, as a spermatic cell or spermatozooid.
4. n. An animal in one of its inferior stages of development, as one of the intermediate forms in alternate generation.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.