夏なつ毛げ

noun

summer fur; summer coat; summer plumage

Refers to the thinner, lighter coat or plumage that animals grow in warmer months. Often contrasted with 冬毛 (ふゆげ, winter coat).

• 猫ねこは春はるになると夏なつ毛げに生はえ変かわる。

  Cats shed their winter coat and grow a summer coat in spring.

• この犬けん種しゅは夏なつ毛げが短みじかい。

  This breed has short summer fur.