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tion or for some special purpose, as in the manufacture of the digestive ferments. Hence, metabolism may be either constructive (anabolism), or destructive (katabolism).

The constructive metabolism of the body, as distinguished from katabolism.

volution of energy, -- a normal nutritional process the reverse of assimilation; downward metabolism. The breaking down of already existing chemical compounds into simpler ones, sometimes called disassimilation. Martin.

Heb. ix. 17. -- Metabolic force (Physiol.), the influence which causes and controls the metabolism of the body. -- No force, no matter of urgency or consequence; no account; hence, to do no force, to make no account of; not to heed. [Obs.] Chaucer. -- Of force, of necessity; unavoidably; imperatively. "Good reasons…

Destructive or downward metabolism; regressive metamorphism; -- opposed to anabolism. See Disassimilation.

Of or pertaining to metabolism; as, metabolic activity; metabolic force.

Metabolism. [R.]

A product of metabolism; a substance produced by metabolic action, as urea.

To change by a metabolic process. See Metabolism.

he change of material of one kind into another through the agency of the living organism; metabolism. Vegetable metamorphosis (Bot.), the doctrine that flowers are homologous with leaf buds, and that the floral organs are transformed leaves.

he constituents of the plant which are not accompanied by a production of organic matter; metabolism.

The process of constructive metabolism by which carbohydrates are formed from water vapor and the carbon dioxide of the air in the chlorophyll-containing tissues of plants exposed to the action of light. It was formerly called assimilation, but this is now commonly used as in animal physiology. The details of the proce…