Polian, a. Zool.
(ˈpəʊlɪən)
[f. proper name Poli: see below + -an.]
Of, pertaining to, or named after J. X. Poli, a Neapolitan naturalist (1746–1825), as in Polian vesicle, one of the cæcal canals or sacs, generally five, connected with the circular vessel of an Echinoid or Holothurioid.
| 1841–71 T. R. Jones Anim. Kingd. (ed. 4) 229 The Polian vesicle (b) is largely increased in size. 1877 Huxley Anat. Inv. Anim. ix. 547 The circular vessel of the ambulacral system not only gives origin to polian vesicles, madreporic canals and tentacular vessels, but five canals proceed from it. |