noun

  1. convex lens.

Variations

Pronunciation Kanji Kana Is Common
 
 
 
凸レンズ とつレンズ

Contained Kanji Breakdown

convex, beetle brow, uneven
トツ でこ (9th, N1)
open box enclosure, open box radical (no. 17)
カン (Kentei 1)