単たん眼がん

noun

single eye; one eye; single lens

General term for a single eye or lens, as opposed to a pair or compound eye. Also used in optical contexts (e.g., 単眼鏡, a monocular).

See also: 単眼鏡

• 彼かれは事じ故こで単たん眼がんになってしまった。

  He lost sight in one eye in an accident.

• 単たん眼がん鏡きょうで遠とおくの景色けしきを眺ながめる。

  I view distant scenery with a monocular.

noun

simple eye; ocellus

Zoological term for a simple eye in arthropods and other invertebrates, distinct from compound eyes (複眼).

See also: 複眼

• 昆こん虫ちゅうの頭とう部ぶには複ふく眼がんと単たん眼がんがある。

  Insects have both compound eyes and simple eyes on their heads.