ACHROMATIC a.
Uncolored; not absorbing color from a fluid; -- said of tissue. Achromatic lens (Opt.), a lens composed usually of two separate lenses, a convex and concave, of substances having different refractive and dispersive powers, as crown and flint glass, with the curvatures so adjusted that the chromatic aberration produced…
CAPACITY n.
ontracts, will, etc.; legal power or right; competency. Capacity for heat, the power of absorbing heat. Substances differ in the amount of heat requisite to raise them a given number of thermometric degrees, and this difference is the measure of, or depends upon, whzt is called their capacity for heat. See Specific hea…
FIT n.
A mood of any kind which masters or possesses one for a time; a temporary, absorbing affection; a paroxysm; as, a fit melancholy, of passion, or of laughter. All fits of pleasure we balanced by an equal degree of pain. Swift. The English, however, were on this subject prone to fits of jealously. Macaulay.…
OCCLUSION n.
ning; imperforation. Dunglison. Occlusion of gases (Chem. & Physics), the phenomenon of absorbing gases, as exhibited by platinum, palladium, iron, or charcoal; thus, palladium absorbs, or occludes, nearly a thousand times its own volume of hydrogen, and in this case a chemical compound seems to be formed.…