Source : Webster's Revised Unabridged Dictionary (1913)

Quicklime \Quick"lime\, n. [See {Quick}, a.] (Chem.)
   Calcium oxide; unslacked lime; -- so called because when wet
   it develops great heat. See 4th {Lime}, 2.

Source : WordNet®

quicklime
     n : a white crystalline oxide used in the production of calcium
         hydroxide [syn: {calcium oxide}, {lime}, {calx}, {calcined
         lime}, {fluxing lime}, {unslaked lime}, {burnt lime}]