lens | BrE lɛnz, AmE lɛnz | noun ① (in optical instruments) 透镜 tòujìng ; (in spectacles) 镜片 jìngpiàn ; (in camera) 镜头 jìngtóu ▸ a concave/convex lens 凹/凸透镜 ▸ to have strong/weak lenses (of glasses) 度数深/浅 ② Anatomy (of eye) 晶状体 jīngzhuàngtǐ ③ (contact lens) 隐形眼镜 yǐnxíng yǎnjìng |