HYALOGRAPHY
Hy`a*log"ra*phy, n.
Defn: Art of writing or engraving on glass.
HYALOID
Hy"a*loid, a. Etym: [Gr. hyaloïde.] (Anat.)
Defn: Resembling glass; vitriform; transparent; hyaline; as, the hyaloid membrane, a very delicate membrane inclosing the vitreous humor of the eye.
HYALONEMA
Hy`a*lo*ne"ma, n. Etym: [NL., fr. Gr. (Zoöl.)
Defn: A genus of hexactinelline sponges, having a long stem composed of very long, slender, transparent, siliceous fibres twisted together like the strands of a color. The stem of the Japanese species (H. Sieboldii), called glass-rope, has long been in use as an ornament. See Glass-rope.
HYALOPHANE
Hy*al"o*phane, n. Etym: [Gr. (Min.)
Defn: A species of the feldspar group containing barium. See
Feldspar.
HYALOSPONGIA
Hy`a*lo*spon"gi*a, n. pl. Etym: [NL., fr. Gr. (Zoöl.)
Defn: An order of vitreous sponges, having glassy six-rayed, siliceous spicules; — called also Hexactinellinæ.