Compressor 01 : (1) (Eng. A pump used for raising the pressure of air or other gases. (2) (Teleph. An amplifier which reduces the range of level of the output as compared with the input
H. J. Porter (Chairman - Technical Committee), Dictionary of Fire Technology, The Institution of Fire Engineers, The Victory Press (Leicester) Ltd. 1979 UK. (Fr Tech - Brit) {81}