Definition of Mesozoa in English:

Mesozoa

noun

Zoology
  • Treated as plural: a group of minute worms with no body cavity or organs other than reproductive cells, which are internal parasites of marine invertebrates and absorb dissolved nutrients directly from the host's tissues; (also mesozoa) worms of this group collectively.

Origin

Late 19th century; earliest use found in Quarterly Journal of Microscopical Science. From meso- + -zoa, after French Mésozoaires.

Pronunciation

Mesozoa

/ˌmɛsə(ʊ)ˈzəʊə/