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Of, Pertaining to, or produced by, magnetism which is developed by the passage of an electric current. Electro-magnetic engine, an engine in which the motive force is electro-magnetism. -- Electro-magnetic theory of light (Physics), a theory of light which makes it consist in the rapid alternation of transient electri…

The magnetism developed by a current of electricity; the science which treats of the development of magnetism by means of voltaic electricity, and of the properties or actions of the currents evolved.

The young of an animal in the womb, or more specifically, before its parts are developed and it becomes a fetus (see Fetus).

Pertaining to the development of an embryo.

The production and development of an embryo.

The science which relates to the formation and development of the embryo in animals and plants; a study of the gradual development of the ovum until it reaches the adult stage.

nal; rudimentary. Embryonic sac or vesicle (Bot.), the vesicle within which the embryo is developed in the ovule; -- sometimes called also amnios sac, and embryonal sac.

Embryonic; undeveloped. [R.]

Growing or developing within cartilage; -- applied esp. to developing bone.

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.