arc cotangent is a noun meaning "the inverse function of the cotangent; the angle that has a cotangent equal to a given number". It carries one recorded sense.
the inverse function of the cotangent; the angle that has a cotangent equal to a given number
Definitions, synonyms and semantic relations for arc cotangent come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.