perf (/perf/ n.)
Syn. chad (sense 1). The term perfory /per´fə-ree/ is also heard. The term perf may also refer to the perforations themselves, rather than the chad they produce when torn (philatelists use it this way).
Syn. chad (sense 1). The term perfory /per´fə-ree/ is also heard. The term perf may also refer to the perforations themselves, rather than the chad they produce when torn (philatelists use it this way).