Part 114

||Scler`o*der"ma*ta (?), n. pl. [NL.] (Zoöl.) The stony corals; the ||Madreporaria.

{ Scler`o*der"mic (?), Scler`o*der"mous (?) }, (Zoöl.) (a) Having the integument, or skin, hard, or covered with hard plates. (b) Of or pertaining to the Sclerodermata.

Scler`o*der"mite (?), n. (Zoöl.) (a) The hard integument of Crustacea. (b) Sclerenchyma.

Scler"o*gen (? or ?), n. [Gr. sklhro`s hard + -gen.] (Bot.) The thickening matter of woody cells; lignin.

Scle*rog"e*nous (?), a. [Gr. sklhro`s hard + -genous.] (Anat.) Making or secreting a hard substance; becoming hard.

Scle"roid (?), a. [Gr. &?;; sklhro`s hard + &?; form.] (Bot.) Having a hard texture, as nutshells.

||Scle*ro"ma (?), n. [NL., fr. Gr. sklhro`s hard + -oma.] (Med.) ||Induration of the tissues. See Sclerema, Scleroderma, and Sclerosis.

Scle*rom"e*ter (?), n. [Gr. sklhro`s hard + -meter.] An instrument for determining with accuracy the degree of hardness of a mineral.

Scle*rosed" (?), a. Affected with sclerosis.

||Scle*ro"sis (?), n. [NL., fr. Gr. (&?;&?;, fr. sklhro`s hard.] 1. ||(Med.) Induration; hardening; especially, that form of induration ||produced in an organ by increase of its interstitial connective ||tissue.

2. (Bot.) Hardening of the cell wall by lignification.

Cerebro-spinal sclerosis (Med.), an affection in which patches of hardening, produced by increase of the neuroglia and atrophy of the true nerve tissue, are found scattered throughout the brain and spinal cord. It is associated with complete or partial paralysis, a peculiar jerking tremor of the muscles, headache, and vertigo, and is usually fatal. Called also multiple, disseminated, or insular, sclerosis.

Scle`ro*skel"e*ton (?), n. [Gr. sklhro`s hard + E. skeleton.] (Anat.) That part of the skeleton which is developed in tendons, ligaments, and aponeuroses.

Scle*ro"tal (?), a. (Anat.) Sclerotic. -- n. The optic capsule; the sclerotic coat of the eye. Owen.

Scle*rot"ic (?), a. [Gr. sklhro`s hard: cf. F. sclérotique.] 1. Hard; firm; indurated; -- applied especially in anatomy to the firm outer coat of the eyeball, which is often cartilaginous and sometimes bony.

2. (Anat.) Of or pertaining to the sclerotic coat of the eye; sclerotical.

3. (Med.) Affected with sclerosis; sclerosed.

Sclerotic parenchyma (Bot.), sclerenchyma. By some writers a distinction is made, sclerotic parenchyma being applied to tissue composed of cells with the walls hardened but not thickened, and sclerenchyma to tissue composed of cells with the walls both hardened and thickened.

Scle*rot"ic, n. [Cf. F. sclérotique.] (Anat.) The sclerotic coat of the eye. See Illust. of Eye (d).

Scle*rot"ic, a. (Chem.) Pertaining to, or designating, an acid obtained from ergot or the sclerotium of a fungus growing on rye.

Scle*rot"ic*al (?), a. (Anat.) Sclerotic.

||Scler`o*ti"tis (?), n. [NL. See Sclerotic, and -itis.] (Med.) ||Inflammation of the sclerotic coat.

||Scle*ro"ti*um (?), n.; pl. Sclerotia (#). [NL., fr. Gr. sklhro`s ||hard.] 1. (Bot.) A hardened body formed by certain fungi, as by the ||Claviceps purpurea, which produces ergot.

2. (Zoöl.) The mature or resting stage of a plasmodium.

Scler"o*tome (sklr"*tm or sklr"*tm), n. [Gr. sklhro`s hard + te`mnein to cut.] (Zoöl.) One of the bony, cartilaginous, or membranous partitions which separate the myotomes. -- Scler`o*tom"ic (#), a.

Scle"rous (?), a. [Gr. &?;.] (Anat.) Hard; indurated; sclerotic.

Scoat (?), v. t. To prop; to scotch. [Prov. Eng.]

Scob"by (?), n. The chaffinch. [Prov. Eng.]