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The nucleus of a cell; the germinal or active spot of a cellule, through or in which cell development takes place.

Development of cells in animal and vegetable organisms. See Gemmation, Budding, Karyokinesis; also Cell development, under Cell.

Of or pertaining to cytogenesis or cell development.

Cell production or development; cytogenesis.

The fertilized egg cell or parent cell, from the development of which the child or other organism is formed. Hæckel.

etter; herpetic. Dartroud diathesis, A morbid condition of the system predisposing to the development of certain skin deseases, such as eczema, psoriasis, and pityriasis. Also called rheumic diathesis, and hipretism. Piffard.

ing to Darwin; as, the Darwinian theory, a theory of the manner and cause of the supposed development of living things from certain original forms or elements.

Diminution or reduction of strength, efficacy, or value; degeneration; deterioration. The development and degradation of the alphabetic forms can be traced. I. Taylor (The Alphabet).

tion of the novelist must be characterized, to speak craniologically, by an extraordinary development of the passion for delitescency. Sir W. Scott.

The development and cutting of teeth; teething.

The gradual formation or production of organs or parts by a process of evolution or development, as when the seed develops the root and the stem, the initial stem develops the leaf, branches, and flower buds; or in animal life, when the germ evolves the digestive and other organs and members, or when the animals as the…

Having two modes of embryonic development.

The treatment suited to a disciple or learner; education; development of the faculties by instruction and exercise; training, whether physical, mental, or moral. Wife and children are a kind of discipline of humanity. Bacon. Discipline aims at the removal of bad habits and the substitution of good ones, especially thos…

unity of embryonic structure reveals community of descent; but dissimilarity of embryonic development does not prove discommunity of descent. Darwin.

Pertaining to the development of electricity, especially electrical currents, by power; producing electricity or electrical currents by mechanical power.

Having a tendency to prevent the development of anything, especially of a disease.

A simple cell, from the development of which the young of animals are formed; ovum; germ cell.

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.

Pertaining to the development of an embryo.

The production and development of an embryo.