资料来源 : pyDict

聚集日光引火的凸透镜,太阳眼镜

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Sunglass \Sun"glass`\, n.; pl. {Sunglasses}.
   A convex lens of glass for producing heat by converging the
   sun's rays into a focus. ``Lighting a cigar with a
   sunglass.'' --Hawthorne.