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单词 rhynchodaeum
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rhynchodaeum

/rɪŋkə(ʊ)ˈdiːəm/
(also rhynchodeum, rhyncodaeum, rhyncodeum) Zoology
noun
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.

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更新时间:2025/2/24 4:09:07