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Induration of the cellular tissue. Sclerema of adults. See Scleroderma. -- Sclerema neonatorum ( Etym: [NL., of the newborn], an affection characterized by a peculiar hardening and rigidity of the cutaneous and subcutaneous tissues in the newly born. It is usually fatal. Called also skinbound disease.…

Cellular slaggy lava; volcanic cinders.

ilver gar. (Zoöl.) See Billfish (a) -- Silver grain (Bot.), the lines or narrow plates of cellular tissue which pass from the pith to the bark of an exogenous stem; the medullary rays. In the wood of the oak they are much larger than in that of the beech, maple, pine, cherry, etc. -- Silver grebe (Zoöl.), the red-thro…

lcareous tufa; travertine. -- Ceraunian sinter, fulgurite. -- Siliceous sinter, a light cellular or fibrous opal; especially, geyserite (see Geyserite). It has often a pearly luster, and is then called pearl sinter.

ed especially to a spot on the outer surface of a Graafian follicle, and to spots of intercellular substance in scaly epithelium, or to minute holes in such spots.

The minute breathing pores of leaves or other organs opening into the intercellular spaces, and usually bordered by two contractile cells.

A layer or mass of cellular tissue, especially that part of the thallus of certain fungi which incloses the perithecia.

l and vegetable organisms; as, organic structure, or the structure of animals and plants; cellular structure.

structure, as the radiate, articulate, etc., characteristic of organic nature; as, all unicellular organisms are systemless.

A cellular layer derived from the nucleus of an ovule and surrounding the embryo sac. Cf. Quintine.

ess plants, such as fungi, algæ, and lichens, that consist of a thallus only, composed of cellular tissue, or of a congeries of cells, or even of separate cells, and never show a distinction into root, stem, and leaf.

lgæ, fungi, and lichens. The simpler forms, as many blue-green algæ, yeasts, etc., are unicellular and reproduce vegetatively or by means of asexual spores; in the higher forms the plant body is a thallus, which may be filamentous or may consist of plates of cells; it is commonly undifferentiated into stem, leaves, an…

A solid mass of cellular tissue, consisting of one or more layers, usually in the form of a flat stratum or expansion, but sometimes erect or pendulous, and elongated and branching, and forming the substance of the thallogens.

A tumor produced by the escape of blood into the subcutaneous cellular tissue.

osed in a membrane called a cyst, connected with the surrounding parts by the neighboring cellular substance. -- Fatty tumor. See under Fatty. -- Innocent tumor, or Benign tumor, one which does not of itself threaten life, and does not usually tend to recur after extirpation. -- Malignant tumor, a tumor which tends…

A prefix signifying one, once; as in uniaxial, unicellular.

Unicellular.

lopment which takes place primarily around a single central point, as in the lowest of unicellular organisms.

ot adapted, or set apart, for any particular purpose or function; as, an unspecialized unicellular organism. W. K. Brooks.

ll of which are vascular, in distinction from the cryptogams, which to a large extent are cellular only. Vascular plants (Bot.), plants composed in part of vascular tissue, as all flowering plants and the higher cryptogamous plants, or those of the class Pteridophyta. Cf. Cellular plants, Cellular. -- Vascular system…