柯林斯詞典convex /?k?nv?ks/ 1. ADJ Convex is used to describe something that curves outward in the middle. 凸面的 ...the large convex mirror above the fireplace. ...壁爐上面的大凸面鏡子。 返回 convex劍橋詞典curved or swelling out 凸的，凸起的 a convex lens /mirror 凸透鏡／凸面鏡 比較concave 返回 convex