1、A feeding zooid in a hydroid colony having an oral opening surrounded by tentacles.
2、One of the distinct individuals that join to form a compound or colonial animal; a zooid.
3、There are three kinds of life: the vegetal life, zooid life, and the rational life.
4、Umbllaria are interconnected to form a single myoneme system that may act as the role of cell skeleton as well as providing the mechanism by which the zooid contracts and relaxes.
