predive adjective 1adverb 1 adjective1 •Before a dive.“Vessel prep” had been completed at dawn, so after a pre-dive briefing, I climbed a ladder to the top hatch of the sub, took off my boots and clambered into the tube — 2019 adverb1 •Before a diveEach of the divers was tested seven times--twice predive in the chamber, three times during the dive, and twice postdive, with one to several days separating the administrations. — 1981
