That dives or is used or diving, That or who dives or dive, a hollow inverted vessel, sometimes bell-shaped, in which men may descend and work under water, respiration being sustained by the compressed air at the top, by fresh air pumped in through a tube from above, noun_ The action of the verb to dive in any sense, The practice of swimming underwater, especially using a scuba system, and especially for recreation, verb_ Present participle of dive