SUBSTANCE n. 6 definitions
s; real or existing essence. These cooks, how they stamp, and strain, and grind, And turn substance into accident! Chaucer. Heroic virtue did his actions guide, And he the substance, not the appearance, chose. Dryden.
ACCESSION n.
A mode of acquiring property, by which the owner of a corporeal substance which receives an addition by growth, or by labor, has a right to the part or thing added, or the improvement (provided the thing is not changed into a different species). Thus, the owner of a cow becomes the owner of her calf.…
ACHROMATIC a.
tic 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 by the one is corrected by other, and light emerges from the compound l…