
好词典

源自希腊语 'di-'(双)和 'morphē'(形态),19世纪进入英语。
❶ 指同一物种中存在两种不同形态或特征的现象,常见于性别差异或季节性变化。
“Sexual dimorphism is evident in many bird species, where males are often more colorful than females.”
(许多鸟类中存在明显的性别二态性,雄性通常比雌性颜色更鲜艳。)
“The dimorphism in leaves between seasons helps plants adapt to different weather conditions.”
(叶片随季节变化的二态性帮助植物适应不同的天气条件。)
sexual dimorphism — 特指同一物种中雌雄个体在形态、颜色或大小等方面的显著差异。
“Lions show strong sexual dimorphism, with males having prominent manes.”
(狮子表现出强烈的性别二态性,雄性拥有显著的鬃毛。)