羽う軸じくうじくじ字FuriganaMeanings1nounrachis; shaft (of a feather)ornithology›Technical ornithological term for the central shaft of a feather.鳥とりの羽う軸じくは軽かるくて丈じょう夫ぶだ。The rachis of a bird's feather is light and strong.
