Meaning of Japanese Word "凸レンズ" (Totsurenzu)

Kanji in this word

Related words "凸"

• 凸レンズ (totsurenzu)convex lens
• 凸版 (toppan)relief printing
• 凹凸 (ototsu)unevenness, irregularity, ruggedness
• 凸凹 (dekoboko)unevenness