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This is a glossary of technical terms, jargon, diver slang and acronyms used in underwater diving. The definitions listed are in the context of underwater diving. There may be other meanings in other contexts. Underwater diving can be described as a human activity – intentional, purposive, conscious and subjectively meaningful sequence of ...
The usual meaning of diving helmet is a piece of diving equipment that encases the user's head and delivers breathing gas to the diver, but the term "diving helmet", or "cave diving helmet" may also refer to a safety helmet like a climbing helmet or caving helmet that covers the top and back of the head, but is not sealed.
Alternative term for a viewport of a standard diving helmet. light head. See: Dive light#Canister light. The part of a canister light (q.v.) which emits light, and is held in the hand or mounted on the helmet. [62] lightweight helmet. Main article: Diving helmet#Lightweight demand helmets. Low volume, close fitting diving helmet, usually with ...
Deep sea diving is underwater diving, usually with surface-supplied equipment, and often refers to the use of standard diving dress with the traditional copper helmet. Hard hat diving is any form of diving with a helmet, including the standard copper helmet, and other forms of free-flow and lightweight demand helmets.
Lower part of a standard copper helmet and some other heavy helmets, which clamps to the diving suit, rests on the diver's shoulders, and to which the helmet upper part, or bonnet, is clamped, screwed or bolted. counterlung. See: Rebreather#Counterlungs
1. A term originally referring to diving with standard diving dress, where the helmet is sealed to the watertight diving suit, as contrasted with a shallow-water diving helmet, which is open at the bottom and was used for work in shallow water where the diver could ditch the helmet and make a free ascent in an emergency. Several incompatible ...
Recreational diving or sport diving is a type of diving that uses scuba equipment for the purpose of leisure and enjoyment. In some diving circles, the term "recreational diving" is used in contradistinction to " technical diving ", a more demanding aspect of the sport which requires greater levels of training, experience and equipment.
[26] A single dive experience under the direct supervision of a recreational instructor offered to uncertified novices in the hope of them deciding to purchase entry level training. Some instruction on the essential skills and risks is generally provided, and the dive is generally conducted in benign conditions. [27] Compare with resort diving.