haɪˈdrɒzɪk, ˈhaɪdrəˌzɔɪɪk

Definitions

1. adjective

relating to or denoting the hydrozoa, a subphylum of cnidarians (coelenterates) including freshwater jellyfish.

“The hydrozoic species found in this lake are a concern for local biodiversity.”

2. noun

a member of the hydrozoa.

“Some hydrozoic species have stinging cells called cnidocytes.”