1

hydroid

adjective hy·droid \ ˈhī-ˌdrȯid \

Definition of hydroid

: of or relating to a hydrozoan; especially : resembling a typical hydra

Origin and Etymology of hydroid

ultimately from New Latin Hydra


2

hydroid

noun

Definition of hydroid

: hydrozoan; especially : a hydrozoan polyp as distinguished from a hydrozoan jellyfish

Recent Examples of hydroid from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hydroid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of hydroid

1865

in the meaning defined above

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Medical Dictionary

1

hydroid

adjective hy·droid \ ˈhī-ˌdrȯid \

medical Definition of hydroid

: of or relating to a hydrozoan; especially : resembling a typical hydra

2

hydroid

noun

medical Definition of hydroid

: hydrozoan; especially : a hydrozoan polyp as distinguished from a medusa

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