Subscriber login


Forgot your password?

Library card login

Other

Orthonectida

Definition of Orthonectida

noun

Zoology
  • a minor phylum of mesozoan worms which are internal parasites of a range of marine invertebrates.

Derivatives

orthonectid

noun & adjective

Origin:

modern Latin (plural), from Greek orthos 'straight' + nektos 'swimming' (see nekton)

Orthonectida in other Oxford dictionaries

Definition of Orthonectida in the US English dictionary
  |  Cite
Oxford Dictionaries Pro

For Oxford's best resources for writers, plus thesaurus, audio, and 1.9m examples.

Shop for an Oxford dictionary

Find the perfect Oxford dictionary for you in our online shop.
SHOP NOW ►

Word of the day

cur

/ kəː /
noun
an aggressive or unkempt dog …