Glossary of Scuba Diving

Did you know that scuba is an acronym?
Do you know what DIN means?

The glossary contains terms, acronyms, expressions, and other related nomenclature relative to scuba diving. You can also select a glossary category to get a better grouping of the definitions. And for each entry, you can learn more from the encyclopedia.

  • Bioluminescence

    Bioluminescence is the ability of some aquatic organisms to generate light. It uses chemical reaction to achieve this. This ability has only been observed in aquatic organisms and only a few terrestrial insects such as the firefly.

  • Bolt Snap

    Bolt snaps commonly called dog clips comes in many sizes and are used to attach various pieces of diving equipment. They can also be double ended with a clip on each end. They are said to be the best clip for securing equipment as they cannot be opened by pressing against the gate or without…

  • Buoyancy, Buoyant

    Buoyant or buoyancy is relative to the sinking or floating characteristics of an object in liquids. We can say objects are positively buoyant or have a positive buoyancy when they float. Inversely are negatively buoyant when they sink, and neutrally buoyant when they neither float or sink and remains at the same depth.