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Connected with osteogenesis, or the formation of bone; producing bone; as, osteogenetic tissue; the osteogenetic layer of the periosteum.

Bone formation; ossification. See Ectostosis, and Endostosis.

receptacles, as in Crustacea, that retain the eggs after they have been excluded from the formative organs, until they are hatched.

The formation of ova or eggs in the ovary, and the discharge of the same. In the mammalian female the discharge occurs during menstruation.

Of, pertaining to, or derived from, a former glacial formation.

A genus of fossil saurians found in the Permian formation.

A systematic view of all branches of human knowledge; a work of universal information.

A genus of large trilobites characteristic of the primordial formations.

Of or pertaining to a change from the right form, as in the formation of a word from another by a change of termination, gender, etc. Max Müller.

Ossification which takes place in purely fibrous tracts; the formation of bone outside of the periosteum.

The production of seed without fertilization, believed to occur through the nonsexual formation of an embryo extraneous to the embrionic vesicle.

A suborder of Theromorpha, including terrestrial reptiles from the Permian formation.

Used for punishment, discipline, and reformation. "Penitentiary houses." Blackstone.

te pigment or paint, in distinction from white lead, which tarnishes and darkens from the formation of the sulphide.

Belonging or relating to the period, and also to the formation, next following the Carboniferous, and regarded as closing the Carboniferous age and Paleozoic era. -- n.

A genus of trilobites found in the Silurian and Devonian formations. Phacops bufo is one of the most common species.

sm to a well-developed and much- branched mycelium. Reproduction is mainly sexual, by the formation of conidia or sporangia; but the group shows every form of transition from this method through simple conjugation to perfect sexual reproduction by egg and sperm in the higher forms. -- Phy`co*my*ce"tous (#), a.…

gether; as, to pick rags; -- often with up; as, to pick up a ball or stones; to pick up information.

The mode of formation of the placenta in different animals; as, the placentation of mammals.

A formative particle of albuminous matter; a monad; a cytode. See the Note under Morphon. Haeckel.