siphuncularadj.
Zoology.
Of or pertaining to, acting or serving as, a siphuncle. Also, of or pertaining to a siphunculus.
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the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Cephalopoda > [adjective] > of or relating to tube
siphuncular1832
1832 R. Owen Mem. Pearly Nautilus 46 The siphuncular apertures of the septa.
1851 G. F. Richardson Geol. (1855) viii. 230 An external, many-chambered shell, with a siphuncular tube passing through the chambers.
1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 464 Siphuncular collars generally directed backwards.
1975 Jrnl. Zool. 175 278 Prodding the abdomen and pinching the legs of a sycamore aphid induces it to produce siphuncular exudate.
This entry has not yet been fully updated (first published 1911; most recently modified version published online June 2019).
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adj.1832