Glossary of Scuba Diving Terms (Z)

Understanding That Strange Scuba Language

Welcome to our glossary of scuba diving terms. Diving, like many sports, has its own language. Our scuba glossary is for anyone interested in understanding the scuba diving definitions, scuba diving terms or scuba slang found in this strange scuba communication that divers use.

Our scuba glossary is easy to use. Just click on the letter that corresponds to the first letter of the word that you are looking for. All the words that begin with that letter will be displayed.

We will be constantly adding new terms to our scuba glossary. If you think we have missed a term or you can not find the scuba diving information you are looking for, please let us know. We will add it and the best definition we can find to our scuba glossary.

A B C D E F G H I J K L M N O P QR S UV W Y X Y Z
Scuba Diving Glossary Home

Z

The zenith is the direction pointing directly "above" a particular location. This is the point of the celestial sphere vertically above (highest point) any place or observer. The concept of "above" is more specifically defined in astronomy and meteorology as the vertical direction opposite to the net gravitational force at a given location. The opposite direction or the direction of the gravitational force is called the nadir. The term zenith also refers to the highest point reached by a celestial body during its apparent orbit around a given point of observation.

A lens that combines a range of focal lengths.