Celsius

имя существительное [физика, сокращение] C шкала Цельсия

Большой англо-русский словарь

Celsius

I. adjective Etymology: Anders Celsius relating to, conforming to, or having the international thermometric scale on which the interval between the triple point of water and the boiling point of water is divided into 99.99 degrees with 0.01° representing the triple point and 100° the boiling point Example: 10° Celsius; also centigrade — abbreviation C II. biographical name Anders 1701-1744 Swedish astronomer

Merriam-Webster's Collegiate Dictionary