The property of an object that neither sinks nor rises when placed in water. Many cephalopods have chambered shells which are partially emptied so reducing their overall weight and thereby making their density close to that of sea water. In this way they become neutrally buoyant, which reduces the energy needed to swim and gives them great control over poise and stability.

Suspended, floating in the water.

Snorkelling term referring to maintaining a position in water where you go neither up or down.

Neutral Buoyancy is a condition in which a physical body's mass equals the mass it displaces in a surrounding medium. This negates the effect of gravity that would otherwise cause the object to . An object that has neutral buoyancy will neither sink nor float.