also: まいごけん
noun
lost dog; missing dog
A dog that has become separated from its owner and is lost. Often used in notices, announcements, or when describing a stray dog that appears to have an owner.
近所で迷子犬が保護された。
A lost dog was taken into custody in the neighborhood.
迷子犬の張り紙を見かけましたか？
Did you see a poster about a missing dog?
Compound of 迷子 (maigo, 'lost child') and 犬 (inu, 'dog'). The reading まいごけん uses the on'yomi of 犬, which is less common in everyday speech.