Definition of rhynchocoel in US English:

rhynchocoel

(also rhyncocoele, rhyncocoel, rhynchocoele)

adjective

Zoology
  • = rhynchocoelanrare.

noun

Zoology
  • 1A worm of the phylum Rhynchocoela (now usually called Nemertea); a nemertean worm.

  • 2In a nemertean worm: a fluid-filled tubular body cavity containing the introverted proboscis. Also: a cavity enclosing the extensible proboscis in whelks and related gastropods.

Origin

Late 19th century; earliest use found in Thomas Huxley (1825–1895), biologist and science educationist. From rhyncho- + -coele.

Pronunciation

rhynchocoel

/ˈrɪŋkə(ʊ)siːl/