So we got a compressor and we would literally pump air into each of the four cameras so we could blow water off the lenses.
1839, from Latin compressor, agent noun from comprimere (see compress (v.)). As a type of surgical instrument, from 1870. As short for air compressor, from 1874.
compressor com·pres·sor (kəm-prěs'ər)n. A muscle that causes compression of a structure upon contraction.