Definition of rhynchodaeum in English:

rhynchodaeum

(also rhynchodeum, rhyncodaeum, rhyncodeum)

noun

Zoology
  • In certain invertebrates with an eversible proboscis (as nemerteans, whelks, etc.): the cavity or chamber lying between the retracted proboscis and the exterior, through which the proboscis may be everted.

Origin

Late 19th century; earliest use found in Annals and Magazine of Natural History. From German Rhynchodaeum from rhyncho- + ancient Greek ὁδαῖος that is on or by the road, after English proctodeum, stomodaeum.

Pronunciation

rhynchodaeum

/rɪŋkə(ʊ)ˈdiːəm/