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The inner layer of the wall of the uterus, which envelops the embryo, forms a part of the placenta, and is discharged with it.

the next; to form or expand by a process of growth; to cause to change gradually from an embryo, or a lower state, to a higher state or form of being; as, sunshine and rain develop the bud into a flower; to develop the mind. The sound developed itself into a real compound. J. Peile. All insects . . . acquire the joint…

series of changes which animal and vegetable organisms undergo in their passage from the embryonic state to maturity, from a lower to a higher state of organization.

A plant with netveined leaves, and monocotyledonous embryos, belonging to the class Dictyogenæ, proposed by Lindley for the orders Dioscoreaceæ, Smilaceæ, Trilliaceæ, etc.

ic in cephalopods. They are remarkable for the extreme simplicity of their structure. The embryo exists in two forms.

Having two modes of embryonic development.

A lack of common possessions, properties, or relationship. Community of embryonic structure reveals community of descent; but dissimilarity of embryonic development does not prove discommunity of descent. Darwin.

e distinguished or distinctive; to make one's self or itself discernible. [R.] The little embryo . . . first distinguishes into a little knot. Jer. Taylor.

lel veins, their flowers are mostly in three, or some multiple of three, parts, and their embryos have but a single cotyledon, with the first leaves alternate. The endogens constitute one of the great primary classes of plants, and included all palms, true lilies, grasses, rushes, orchids, the banana, pineapple, etc. S…

Any monocotyledonous plant; -- so named because many monocotyledons have an endorhizal embryo.

Having the radicle of the embryo sheathed by the cotyledon, through which the embryo bursts in germination, as in many monocotyledonous plants.

The albumen of a seed; -- limited by recent writers to that formed within the embryo sac.

ct; distinguished from a schizocoele, which arises by a splitting of the mesoblast of the embryo.

Having no albumen about the embryo; -- said of certain seeds.

The young or embryo of an animal in the womb, or in the egg; often restricted to the later stages in the development of viviparous and oviparous animals, embryo being applied to the earlier stages. [Written also foetus.]

A short cord which connects the embryo of some myriapods with the amnion.

An embryonic form having its origin in the invagination or pushing in of the wall of the planula or blastula (the blastosphere) on one side, thus giving rise to a double-walled sac, with one opening or mouth (the blastopore) which leads into the cavity (the archenteron) lined by the inner wall (the hypoblast). See Illu…

The process of invagination, in embryonic development, by which a gastrula is formed.

The primitive cell in certain embryonic forms. Balfour.

r of most animals, and in small quantity in other organs and tissues, particularly in the embryo. It is quickly changed into sugar when boiled with dilute sulphuric or hydrochloric acid, and also by the action of amylolytic ferments.