protrochula

noun pro·troch·u·la \prō‧ˈträkyələ\

Definition of protrochula

plural

-s

  1. :  a hypothetical free-swimming primitive organism resembling a simple trochophore and regarded as indicating the way of transition from radial to bilateral symmetry

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Origin and Etymology of protrochula

New Latin, from 1pro- + troch- + -ula (feminine of -ulus -ule)


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