Defn: Rough-fruited. Gray.
TRACHYMEDUSAE
Tra`chy*me*du"sæ, n. pl. Etym: [NL., fr.Gr. medusa.] (Zoöl.)
Defn: A division of acalephs in which the development is direct from the eggs, without a hydroid stage. Some of the species are parasitic on other medusæ.
TRACHYSPERMOUS
Tra`chy*sper"mous, a. Etym: [Gr. (Bot.)
Defn: Rough-seeded. Gray.
TRACHYSTOMATA
Tra`chy*stom"a*ta, n. pl. Etym: [NL.,fr.Gr. stoma.] (Zoöl.)
Defn: An order of tailed aquatic amphibians, including Siren and Pseudobranchus. They have anterior legs only, are eel-like in form, and have no teeth except a small patch on the palate. The external gills are persistent through life.
TRACHYTE
Tra"chyte, n. Etym: [Gr. trachyte.] (Geol.)
Defn: An igneous rock,usually light gray in color and breaking with a rough surface. It consists chiefly of orthoclase feldspar with sometimes hornblende and mica.
TRACHYTIC
Tra*chyt"ic, a. Etym: [Cf. F. trachytique.]