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Growth from within; multiplication of cells by endogenous division, as in the development of one or more cells in the interior of a parent cell.

The portion of each apodeme developed from the interepimeral membrane in certain crustaceans.

The act of developing a new coat of hair, a new set of feathers, scales, etc.; -- opposed to ecdysis.

The inner granular layer of protoplasm in a developing ovum.

elope Increase the capability of some type of machine or system; -- usu. by technological development.

luences, or forces, by which living forms are influenced and modified in their growth and development. It is no friendly environment, this of thine. Carlyle.

A stage in the development of discophorous medusæ, when they first begin to swim about after being detached from the strobila. See Strobila.

Upon or above the notochord; -- applied esp. to a vertebral column which develops upon the dorsal side of the notochord, as distinguished from a perichordal column, which develops around it.

A hard tumor developed from the gums.

inous plate beneath the front of the fetal brain which the ethmoid region of the skull is developed.

at branch of knowledge which has for its subject the characteristics of the human family, developing the details with which ethnology as a comparative science deals; descriptive ethnology. See Ethnology.

Calling forth; serving to evoke; developing. Evocative power over all that is eloquent and expressive in the better soul of man. W. Pater.

The act of unfolding or unrolling; hence, in the process of growth; development; as, the evolution of a flower from a bud, or an animal from the egg.

or unroll; to open and expand; to disentangle and exhibit clearly and satisfactorily; to develop; to derive; to educe. The animal soul sooner evolves itself to its full orb and extent than the human soul. Sir. M. Hale. The principles which art involves, science alone evolves. Whewell. Not by any power evolved from man…

or tumor; anything growing out unnaturally from anything else; a preternatural or morbid development; hence, a troublesome superfluity; an incumbrance; as, an excrescence on the body, or on a plant. "Excrescences of joy." Jer. Taylor. The excrescences of the Spanish monarchy. Addison.

To exert for the sake of training or improvement; to practice in order to develop; hence, also, to improve by practice; to discipline, and to use or to for the purpose of training; as, to exercise arms; to exercise one's self in music; to exercise troops. About him exercised heroic games The unarmed youth. Milton.…

To bring out or develop completely; to discuss thoroughly; as, to exhaust a subject.

To state in enlarged form; to develop; as, to expand an equation. See Expansion, 5.

The developed result of an indicated operation; as, the expansion of (a + b)2 is a2 + 2ab + b2.

exponent is unknown or variable, as ax. -- Exponential series, a series derived from the development of exponential equations or quantities.