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单词 parabranchia
释义

parabranchian.

Brit. /ˌparəˈbraŋkɪə/, U.S. /ˌpɛrəˈbræŋkiə/
Origin: Formed within English, by derivation. Etymons: para- prefix1, branchiae n.
Etymology: < para- prefix1 + branchiae n., after parabranchial adj.
Zoology. Now rare.
The modified osphradium of certain gastropod molluscs, considered as a secondary branchia or gill.
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the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Gastropoda > [noun] > member of > parts of > modified osphradium
parabranchia1883
1883 E. R. Lankester in Encycl. Brit. XVI. 648/1 The right olfactory organ only is retained, and may assume the form of a comb-like ridge to the actual left of the ctenidium or branchial plume. It has been erroneously described as the second gill, and is known as the parabranchia.
1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 479 In some Azygobranchia the osphradium is large, thrown into folds, and is generally taken for a second but reduced ctenidium (parabranchia).
1920 I. F. Henderson & W. D. Henderson Dict. Sci. Terms 225/1 Parabranchia, a much plumed mollusc osphradium or organ of smell.

Derivatives

parabranchiate adj. Obsolete rare having a parabranchia.Apparently only attested in dictionaries or glossaries.
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1890 Cent. Dict. 4272/3 Parabranchiate, provided with a parabranchia.
This entry has been updated (OED Third Edition, June 2005; most recently modified version published online March 2022).
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n.1883
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