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A disproportionately rapid growth of the upper surface of dorsiventral organs, such as leaves, through the stimulus of exposure to light. Encyc. Brit.

The science of the origin and growth of plants.

An oyster which has been bedded, in distinction from one of natural growth.

A stalk or shoot of sugar cane of the first growth from the cutting. The growth of the second and following years is of inferior quality, and is called rattoon.

The act or practice of planting, or setting in the earth for growth. [R.]

A combining form denoting the act or process of forming, development, growth; as, autoplasty, perineoplasty.

The theory that the various genera of bacteria are phases or variations of growth of a number of Protean species, each of which may exhibit, according to undetermined conditions, all or some of the forms characteristic of the different genera and species.

Originally or earliest formed in the growth of an individual or organ; as, a primordial leaf; a primordial cell. Primordial utricle (Bot.), the interior lining of a young vegetable cell.

To bring forth, as young, or as a natural product or growth; to give birth to; to bear; to generate; to propagate; to yield; to furnish; as, the earth produces grass; trees produce fruit; the clouds produce rain. This soil produces all sorts of palm trees. Sandys. [They] produce prodigious births of body or mind. Milto…

Anything that is produced, whether as the result of generation, growth, labor, or thought, or by the operation of involuntary causes; as, the products of the season, or of the farm; the products of manufactures; the products of the brain. There are the product Of those ill-mated marriages. Milton. These institutions ar…

The primary growth from the spore in certain cryptogamous plants; as, the proembryo, or protonema, of mosses.

In the growth of an animal or plant; increase.

Reproduction by the growth of a plant, or part of a plant, directly from an older one, or by gemmæ.

To contribute to the growth, enlargement, or prosperity of (any process or thing that is in course); to forward; to further; to encourage; to advance; to excite; as, to promote learning; to promote disorder; to promote a business venture. "Born to promote all truth." Milton.

Producing by propagation, or by a process of growth.

The minute primary growth from the spore of ferns and other Pteridophyta, which bears the true sexual organs; the oöphoric generation of ferns, etc.

The primary growth from the spore of a moss, usually consisting of branching confervoid filaments, on any part of which stem and leaf buds may be developed.

cells, possessed of vital properties by which the processes of nutrition, secretion, and growth go forward; the so-called " physical basis of life;" the original cell substance, cytoplasm, cytoblastema, bioplasm sarcode, etc.

A superficial growth of vascular tissue radiating in a fanlike manner from the cornea over the surface of the eye.

Affected with a kind of chronic laminitis in which there is a growth of soft spongy horn between the coffin bone and the hoof wall. The disease is called pumiced foot, or pumice foot.