pygmy       
 adjective [ before noun ] (also pigmy) uk/ˈpɪɡ.mi/ us/ˈpɪɡ.mi/
 (动物或鸟类)体型非常小的
A pygmy animal or bird is one of a type that is smaller than animals or birds of that type usually are.
  a pygmy hippopotamus 矮小的河马 
 a pygmy owl 极小的猫头鹰 
 pygmy       
noun [ C ]  disapproving (also pigmy) uk/ˈpɪɡ.mi/ us/ˈpɪɡ.mi/
 无足轻重的人;没什么技能的人
someone who is not important or who has little skill
  a political pygmy 在政治上无足轻重的小人物 
 an intellectual pygmy 智力低下的人