Orthonectida

 
Pronunciation: /ˌɔːθə(ʊ)ˈnɛktɪdə/

plural 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)