Emily Dickinson Lexicon
Definition for BURN'ING-GLASS
BURN'INGBURN'ING-THORN'Y-PLANT
BURN'ING-GLASS, n. [burn and glass.]
A convex glass which, when exposed to the direct rays of the sun, collects them into a small space, called a focus, producing an intense heat. The name is given also to a concave mirror which condenses the sun's rays. – Encyc.
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