Definitions
from The Century Dictionary.
- A family of hydroid hydrozoans with free or rudimentary medusæ, of which the type is the genus Hydractinia.
Etymologies
Sorry, no etymologies found.
Support

Help support Wordnik (and make this page ad-free) by adopting the word hydractiniidæ.
Examples
Sorry, no example sentences found.
Comments
Log in or sign up to get involved in the conversation. It's quick and easy.