stellan.
/ˈstɛlə/, U.S. /ˈstɛlə/ a. Zoology. A star-shaped projection on the surface of a coralline; also, a star-shaped sponge-spicule.
ΘΚΠ
the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [noun] > member of > parts of > sponge spicule > star-shaped
stella1828
star1839
stellate1880
sterraster1887
chiaster1888
the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Hydrozoa > order Campanulariae > member of family Sertulariidae > having star-like forms > star-shaped projection on
stella1828
1828 J. Stark Elements Nat. Hist. II. 431 Surface rough with elevated pyramidal stellæ; stars conical, with a solid central axis.
b. Crystallography. A stellate crystal.
ΘΚΠ
the world > matter > chemistry > crystallography (general) > crystal (general) > crystal habit > [noun] > miscellaneous others
shoot1670
stella1844
hourglass structure1888
spherulite1893
lath1916
1844 G. Bird Urinary Deposits (1857) 238 The octohedra of oxalate may be readily detected mixed with the prisms or stellæ of the former [sc. phosphate of magnesia and ammonia].
This entry has not yet been fully updated (first published 1916; most recently modified version published online March 2022).
<
n.1828