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hydrula

noun
hy·dru·la | \ˈhīdrələ\
plural -s

Definition of hydrula 

1 : a hypothetical primitive polyp of simple type

2 : a developmental phase of many coelenterates (as hydroids) in which they have the form of a simple polyp

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History and Etymology for hydrula

New Latin, diminutive of hydra (hydrozoan polyp)

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Dictionary Entries near hydrula

hydrozincite

hydrozoan

hydrozoon

hydrula

Hydruraceae

Hydrurga

Hydrurus

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