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Affected with atrophy, as a tissue or organ; arrested in development at a very early stage; rudimentary.

Life development generally.

which is not living; the study of living tissue. It has to do with the origin, structure, development, function, and distribution of animals and plants.

That stage in the development of the ovum in which the outer cells of the morula become more defined and form the blastoderm.

A blooming period or stage of development; something lovely that gives rich promise. In the blossom of my youth. Massinger.

r Molluscan age; -- sometimes described as inferior to the Silurian. It is named from its development in Cambria or Wales. See the Diagram under Geology.

rable disease of a horse's foot, characterized by separation of the horny portion and the development of fungoid growths; -- usually resulting from neglected thrush.

Induration of the heart, caused by development of fibrous tissue in the cardiac muscle.

her vegetable or animal, is a cell; the whole series of cells having been formed from the development of the germ cell and by differentiation converted into tissues and organs which, both in plants ans animals, are to be considered as a mass of minute cells communicating with each other. -- Cellular tissue. (a) (Anat.…

Form or development of the skull; as, the races of man differ greatly in cephalism.

sical structure; localization of important organs or parts in or near the head, in animal development. Dana.

A scientific study of children, undertaken for the purpose of discovering the laws of development of the body and the mind from birth to manhood.

The development of cartilage.

the fetus in the womb; also, the similar membrane investing many ova at certain stages of development.

The germinating point in the embryo of a seed; the point in the yolk of an egg at which development begins.

A cranial development supposed to indicate a combative disposition.

Plot; action; construction; manner of development. The book of Job, in conduct and diction. Macaulay. Conduct money (Naut.), a portion of a seaman's wages retained till the end of his engagement, and paid over only if his conduct has been satisfactory.

be regarded as the very latest class of prehistoric strongholds, reaching their greatest development in early historic times, and surviving through the Middle Ages. See also Lake dwellings, under Lake. Encyc. Brit.

ugh and stridulous, difficult breathing; esp., such an affection when associated with the development of a false membrane in the air passages (also called membranous croup). See False croup, under False, and Diphtheria.

Established or accepted religious rites or usages of worship; state of religious development. Cf.Cult, 2.