Definition of "CPT"

(physics) Initialism of charge, parity, time-reversal (in the phrase CPT symmetry)  examples

(medicine) Initialism of current procedure terminology.  examples

Abbreviation of carpet.  examples

(US, dated derogatory slang, sometimes reclaimed) Initialism of Colored People's Time.

(advertising) Initialism of cost per thousand.  examples

(Incoterm) Initialism of Carriage Paid To.  examples