A surgical mask is used inside the operating room or during other sterile procedure areas to protect the patient environment from contamination. Surgical masks have ties so that they can be adjusted for fit, and are tied over the top of a surgical or bouffant cap.
rockfall. 1  an act or instance of the falling of rock, as in a cave-in or an avalanche. 2  a mass of rocks that have fallen: to be trapped under a rockfall.
footfall - the sound of a step of someone walking; he heard footsteps on the porch footstep, step. sound - the sudden occurrence of an audible event; the sound awakened them tramp - a heavy footfall; the tramp of military boots footfall noun. The act or manner of going on foot: footstep, step, tread. Translations. passo rumore di passi. footfall [ËfÊtfÉËl] N â paso m, pisada f. footfall [ËfÊtfÉËl] n (= footstep) â (bruit m de) pas m. footfall [ËfÊtËfÉËl] n â passo