from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A parabolic reflector that focuses solar radiation at a point to obtain temperatures as high as 4,000°C (7,200°F).
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a concave mirror that concentrates the rays of the sun; can produce high temperatures
Sorry, no etymologies found.