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A soft, downy substance, resembling fine wool, consisting of the unicellular twisted hairs which grow on the seeds of the cotton plant. Long-staple cotton has a fiber sometimes almost two inches long; short-staple, from two thirds of an inch to an inch and a half.

as that produced by rubbing two fragments of a broken bone together, or by pressing upon cellular tissue containing air.

A system of prison discipline employing for consecutive periods cellular confinement, associated imprisonment under the mark system, restraint intermediate between imprisonment and freedom, and liberation on ticket of leave.

A microscopic plant of the family Desmidiæ, a group of unicellular algæ in which the species have a greenish color, and the cells generally appear as if they consisted of two coalescing halves.

One of the Diatomaceæ, a family of minute unicellular Algæ having a siliceous covering of great delicacy, each individual multiplying by spontaneous division. By some authors diatoms are called Bacillariæ, but this word is not in general use.

tural collection of serous fluid in any serous cavity of the body, or in the subcutaneous cellular tissue. Dunglison.

The semisolid external layer of protoplasm in some unicellular organisms, as the amoeba; ectoplasm; exoplasm.

A swelling produced by gas or air diffused in the cellular tissue. Emphysema of the lungs, Pulmonary emphysema (Med.), a common disease of the lungs in which the air cells are distended and their partition walls ruptured by an abnormal pressure of the air contained in them.

The primitive formative juice, from which the tissues, particularly the cellular tissue, are formed.

The semifluid, granular interior of certain unicellular organisms, as the inner layer of sarcode in the amoeba; entoplasm; endoplasta.

ning woody fiber and ducts, as the stems of all flowering plants and ferns; -- opposed to cellular.

A method of asexual reproduction among the lowest (unicellular) organisms by means of a process of self-division, consisting of gradual division or cleavage of the into two parts, each of which then becomes a separate and independent organisms; as when a cell in an animal or plant, or its germ, undergoes a spontaneous…

s. -- Ground story. Same as Ground floor (above). -- Ground substance (Anat.), the intercellular substance, or matrix, of tissues. -- Ground swell. (a) (Bot.) The plant groundsel. [Obs.] Holland. (b) A broad, deep swell or undulation of the ocean, caused by a long continued gale, and felt even at a remote distance a…

A morphological term signifying development, in the case of multicellular organisms, from the same unit deme or unit of the inferior orders of individuality.

Developing, in the case of multicellular organisms, from the same embryonic systems into which the secondary unit (gastrula or plant enbryo) differentiates.

A cyst in which some unicellular organisms temporarily inclose themselves, from which they emerge unchanged, after a period of drought or deficiency of food. In some instances, a process of spore formation seems to occur within such cysts.

An inner cellular layer which lies beneath the chitinous cuticle of arthropods, annelids, and some other invertebrates.

One of a class of cellular, flowerless plants, (technically called Lichenes), having no distinction of leaf and stem, usually of scaly, expanded, frond-like forms, but sometimes erect or pendulous and variously branched. They derive their nourishment from the air, and generate by means of spores. The species are very w…

eless portion of tissue, either animal or vegetable, situated between the cells; the intercellular substance.

rom which the brain and spinal cord are developed. -- Medullary rays (Bot.), the rays of cellular tissue seen in a transverse section of exogenous wood, which pass from the pith to the bark. -- Medullary sheath (Anat.), the layer of white semifluid substance (myelin), between the primitive sheath and axis cylinder of…