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osteogenetic layer of the periosteum, and from or around which the matrix of the bone is developed; an osteoplast.

The soft tissue, or substance, which, in developing bone, ultimately undergoes ossification.

; also, the embryonic vesicle from which the parts of the internal ear of vertebrates are developed.

That part of the pistil which contains the seed, and in most flowering plants develops into the fruit. See Illust. of Flower.

of the body wall of Bryozoa in which the ova sometimes undegro the first stages of their development. See Illust. of Chilostoma.

passage of ova from the ovary to the exterior of the animal or to the part where further development takes place. In mammals the oviducts are also called Fallopian tubes.

transparent mass of granular protoplasm, which by a process of multiplication and growth develops into a mass of cells, constituting a new individual like the parent; an egg, spore, germ, or germ cell. See Illust. of Mycropyle.

s, the palatopterygoid cartilage, or rod, from which the palatine and pterygoid bones are developed.

evolution in which the truly ancestral characters conserved by heredity are reproduced in development; original simple descent; -- distinguished from kenogenesis. Sometimes, in zoölogy, the abrupt metamorphosis of insects, crustaceans, etc.

To turn out (profitably or unprofitably); to result; to develop; as, the investigation, or the speculation, panned out poorly. [Slang, U. S.]

tribution of germs, from which under favorable circumstances bacteria, vibrios, etc., may develop.

A portion of the mesoblast (of peripheral origin) of the developing embryo, the cells of which are especially concerned in forming the first blood and blood vessels. C. S. Minot.

production of new individuals from virgin females by means of ova which have the power of developing without the intervention of the male element; the production, without fertilization, of cells capable of germination. It is one of the phenomena of alternate generation. Cf. Heterogamy, and Metagenesis.…

The generation, and method of development, of disease; as, the pathogeny of yellow fever is unsettled.

y of the families constituting the populus Romanus, or body of Roman citizens, before the development of the plebeian order; later, one who, by right of birth or by special privilege conferred, belonged to the nobility.

A poor person; especially, one development on private or public charity. Also used adjectively; as, pouper immigrants, pouper labor.

A somewhat rare skin disease, characterized by the development of blebs upon different part of the body. Quain.

ality or state of being perfect or complete, so that nothing requisite is wanting; entire development; consummate culture, skill, or moral excellence; the highest attainable state or degree of excellence; maturity; as, perfection in an art, in a science, or in a system; perfection in form or degree; fruits in perfectio…

he laws of human speech, the relation of different tongues to one another, and historical development of languages; linguistic science.

Pert. to, or capable of developing, photo-electricity.