[kәu'tәu]
n.
(美国西北部的)高地,山区,分水岭,(加拿大)山谷的一侧

Coteau \Co`teau"\, n.; pl. {Coteaux}. [F., a hill.] [Canada & U.
S.]
1. A hilly upland including the divide between two valleys; a
divide.
[Webster 1913 Suppl.]

2. The side of a valley.
[Webster 1913 Suppl.]