hydrozoan Hear it!

hydrozoan Definition

hydro·zoan (hī′drə zō′ən)

adjective

of a class (Hydrozoa) of cnidarians having a saclike body consisting of two layers of cells, and a mouth that opens directly into the body cavity

Etymology: < ModL Hydrozoa < hydra + zo- + -an

noun

any animal of this class, as a hydroid or Portuguese man-of-war

hydrozoan Usage Examples

Adjective modifier

  • colonial: This colonial hydrozoan ( jellyfish-like invertebrate animal ) has a float bladder that was fully inflated and 22 cm in length.