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Diving

That dives or is used or diving.

(Science: zoology) diving beetle, any beetle of the family Dytiscidae, which habitually lives under water; called also water tiger. Diving bell, 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. Diving dress. See submarine armor. Diving stone, a kind of jasper.