01 n. The act or process of transpiring or excreting in the form of vapor; exhalation, as through the skin or other membranes of the body; as, pu…
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1.
The act or process of transpiring or excreting in the form of vapor; exhalation, as through the skin or other membranes of the body; as, pulmonary transpiration, or the excretion of aqueous vapor from the lungs. Perspiration is a form of transpiration.(Physiol.)
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2.
The evaporation of water, or exhalation of aqueous vapor, from cells and masses of tissue.(bot.)
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3.
The passing of gases through fine tubes, porous substances, or the like; as, transpiration through membranes.(Physics)