An aplanatic telescope is one which entirely corrects the aberration of the rays of light. It is thus distinguished from the achromatic, which only partially corrects the aberration.
Word of the Day: Catachrestical
Having two or more parts of different curvatures, so combined as to remove spherical aberration; -- said of a lens.
Achromatism Roget’s Thesaurus §429
N. achromatism, decoloration, discoloration, pallor, pallidness, pallidity, paleness, etiolation, neutral tint, monochrome, black and white
V. lose color, fade, fly, go, become colorless, turn pale, pale, deprive of color, decolorize, bleach, tarnish, achromatize, blanch, etiolate, wash out, tone down
Adj. uncolored &c. (see color ), colorless, achromatic, aplanatic, etiolate, etiolated, hueless, pale, pallid, palefaced, tallow-faced, faint, dull, cold, muddy, leaden, dun, wan, sallow, dead, dingy, ashy, ashen, ghastly, cadaverous, glassy, lackluster, discolored, light-colored, fair, blond, white, pale as death, pale as ashes, pale as a witch, pale as a ghost, pale as a corpse, white as a corpse
No Bible verses found for "Aplanatic".