palpaclen.
/ˈpalpəkl/, U.S. /ˈpælpək(ə)l/ Zoology. rare.
In siphonophores: a tentacle of a dactylozooid.
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the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Hydrozoa > order Siphonophora > member of > zooid developed as feeler > tentacle of
palpacle1888
1888 J. Arthur Thomson tr. E. Haeckel in Rep. Sci. Results Voy. H.M.S. Challenger: Zool. 28 18 Palpacles or Tasting Filaments. Under this designation I include only the long, extremely contractile, hollow, simple filaments, which occur in the majority of Physonectæ at the base of the palpons.
1898 A. Sedgwick Student's Text-bk. Zool. I. 139 The palpacles are similar organs of the palpons, found in one order.
1983 Philos. Trans. (Royal Soc.) B. 301 170 Totton (1965) considered that the palpons were reduced gastrozooids, and often they carry reduced tentacles or palpacles.
This entry has been updated (OED Third Edition, March 2005; most recently modified version published online March 2022).
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n.1888