Definition of "perspirable" [per•spir•a•ble]

• Capable of being perspired. (adjective)
• Emitting perspiration; perspiring. (adjective)

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• "_ It has been shewn by Dr. Priestley and Mr. Ingenhouz that the green matter at the bottom of cisterns, and the fresh leaves of plants immersed in water, give out considerable quantities of vital air in the sun-shine; that is, the perspirable matter of plants (which is water much divided in its egress from their minute pores) becomes decomposed by the sun's light, and converted into two kinds of air, the vital and inflammable airs."
• "In 1744, Dr. John Mitchell - writing in the influential Philosophical Transactions of the Royal Society -- not only argued that the black skin of Negroes was the result of its thickness and density, which better suited them for hard labor, "the perspirable Matter of black or tawny People is more subtil and volatile in its Nature; and more acrid, penetrating, and offensive, in its Effects." [p. 17]"
• "The perspirable matter which passes off from the skin becomes charged with the odor of alcohol in the drunkard, and is so far changed, in some cases, as to furnish evidence of the kind of spirit drank."