ABATEMENT n.
The entry of a stranger, without right, into a freehold after the death of the last possessor, before the heir or devisee. Blackstone. Defense in abatement, Plea in abatement, (Law), plea to the effect that from some formal defect (e.g. misnomer, want of jurisdiction) the proceedings should be abated.…
ACHROMATIC a.
ave, 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 lens undecomposed. -- Achromatic prism. See Prism. -- Achromatic telescope, or mi…
ACID n.
One of a class of compounds, generally but not always distinguished by their sour taste, solubility in water, and reddening of vegetable blue or violet colors. They are also characterized by the power of destroying the distinctive properties of alkalies or bases, combining with them to form salts, at the same time losi…
ACROSTIC n.
A composition, usually in verse, in which the first or the last letters of the lines, or certain other letters, taken in order, form a name, word, phrase, or motto.