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trophosome
trophosome n. 
/ˈtrəʊfə(ʊ)səʊm/, /ˈtroʊfəˌsoʊm/ (in a hydrozoan) the aggregate of non-reproductive zooids serving a primarily nutritive role (cf. trophozooid n.); cf. gonosome n. at gono- comb. form .
Brit. /ˈtrɒfə(ʊ)səʊm/
, /ˈtrɒfə(ʊ)səʊm//ˈtrəʊfə(ʊ)səʊm/U.S. /ˈtrɑfəˌsoʊm/
, /ˈtrɑfəˌsoʊm//ˈtroʊfəˌsoʊm/ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Hydrozoa > member of > zooid > nutritive > aggregate of
trophosome1864
1864 G. J. Allman in Rep. Brit. Assoc. Advancem. Sci. 1863 354 For the whole assemblage of the former or nutritive zooids I propose the name of ‘trophosome’.
1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 245 The Sea-fir..forms a fixed colony or hydrosoma... The hydrosome consists of a number of hydranths or nutritive zooids collectively forming the trophosome.
1943 Ecol. Monogr. 13 337/2 The two are scarcely distinguishable from the trophosome alone.
2002 P. Herring Biol. Deep Ocean iii. 63 The dark trophosome is scarlet in life and the white tubes are about 20 mm in diameter.
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as lemmas