“hydranth”的英文意思_释义_用法

单词

hydranth

释义

hydranth Zool.|ˈhaɪdrænθ|
[f. hydra (sense 6) + Gr. ἄνθ-ος flower.]
One of the non-sexual zooids, typically nutritive in function, occurring in colonial Hydrozoa, usually on the branches of the cœnosarc (like flowers on a plant). Sometimes extended to any hydroid (free or colonial).
1874Lubbock Orig. & Met. Ins. iii. 49 Every branchlet crowned by its graceful hydranth.1877Huxley Anat. Inv. Anim. iii. 128 In an early stage of its existence every hydrozoon is represented by a single hydranth.1888Rolleston & Jackson Anim. Life 245 The hydrosome [of Sertularia] consists of a number of hydranths or nutritive zooids collectively forming the trophosome and connected to one another by a branching cœnosarc.

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