Located in or near cold ocean waters. / Characterized by the presence or use of cold water.

A village in Severn, Ontario, Canada. / A small city, the county seat of Comanche County, Kansas, United States. / A city, the county seat of Branch County, Michigan, United States.

(chiefly US, dated) A small, very inexpensive apartment having only the most rudimentary features and lacking a plumbing system to supply hot water.

plural of coldwater flat