The Collaborative International Dictionary
Bombycinous
Bombycinous \Bom*byc"i*nous\ (b[o^]m*b[i^]s"[i^]*n[u^]s), a. [L. bombycinus. See Bombazine.]
Silken; made of silk. [Obs.]
--Coles.Being of the color of the silkworm; transparent with a yellow tint.
--E. Darwin.
Wiktionary
bombycinous
a. 1 (context obsolete English) silken; made of silk 2 (context obsolete English) Of the colour of the silkworm; transparent with a yellow tint.