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Wiktionary
ctm

n. 1 (context intellectual property English) http://en.wikipedia.org/wiki/Community%20Trade%20Mark 2 (context medicine English) color, temperature, moisture used to assess skin signs

Wikipedia
CTM

CTM is an initialism that may stand for:

CTM (Macau)

Companhia de Telecomunicações de Macau S.A.R.L (CTM; ) is a telecommunications company in Macau, which obtained a monopoly franchise license from the government except for mobile telephone services.