(动物,尤指鸟类、昆虫、甲壳类等的)蜕皮期 / 换毛(换羽)季:在一段时间内定期脱落旧的外皮、羽毛或毛发,并长出新的,以适应生长、保暖或伪装等需要。
/ˈmoʊltɪŋ ˈsiːzən/
Birds often become quieter and less active during molting season.
鸟类在换羽季往往会变得更安静、活动更少。
During molting season, many seabirds reduce long flights because growing new feathers demands extra energy and leaves them temporarily less efficient.
在换羽季,许多海鸟会减少长距离飞行,因为长出新羽毛需要额外能量,也会让它们在一段时间内飞行效率下降。
molting 来自动词 molt(脱毛、换羽、蜕皮),源自中古英语,和“脱落、剥离”这一概念相关;season 来自拉丁语系词源,表示“一段固定的时期”。合起来 molting season 指“发生换羽/蜕皮的那段时期”。