Defn: An instrument for dividing the cornea in operations for cataract.
KERATONYXIS
Ker`a*to*nyx"is, n. Etym: [Gr. (Med.)
Defn: The operation of removing a cataract by thrusting a needle through the cornea of the eye, and breaking up the opaque mass.
KERATOPHYTE
Ker"a*to*phyte, n. Etym: [Gr. (Zoöl.)
Defn: A gorgonian coral having a horny axis.
KERATOSA
Ker`a*to"sa, n. pl. Etym: [NL., fr. Gr. (Zoöl.)
Defn: An order of sponges having a skeleton composed of hornlike fibers. It includes the commercial sponges.
KERATOSE
Ker"a*tose`, n. Etym: [Gr. (Physiol. Chem.)
Defn: A tough, horny animal substance entering into the composition of the skeleton of sponges, and other invertebrates; — called also keratode.
KERATOSE
Ker"a*tose`, a. (Zoöl.)