Definition of discotriaene in US English:

discotriaene

noun

Zoology
  • (In sponges) a triaene in which the divergent rays are united to form a disc.

Origin

Late 19th century; earliest use found in William Sollas (1849–1936), geologist and anthropologist.

Pronunciation

discotriaene

/ˌdɪskə(ʊ)ˈtrʌɪiːn/