coot

coot
/ku:t; kut/ n
1 type of water-bird with a white spot on the forehead 蹼鸡, 白骨顶（额上有白斑的一种水鸟）. =>illus at App 1 见附录1之插图, page v.
2 (idm 习语) bald as a coot => bald.

牛津英汉双解词典