Definition of cubomedusan in US English:

cubomedusan

noun

Zoology
  • A cubomedusa, a box jellyfish.

adjective

Zoology
  • Belonging to or characteristic of cubomedusae.

Origin

Late 19th century; earliest use found in The Century Dictionary. From Cubomedusae + -an.

Pronunciation

cubomedusan

/ˌkjuːbəʊmɪˈdjuːzən/