hydrostatic lock noun 3verb 2forms 3 noun3 •A condition that arises when a device which compresses gases seizes up because of the infiltration of liquid, which prevents further compression.When hydrostatic lock is suspected or exists, stop cranking immediately and notify unit maintenance. — 1992 •A locking mechanism that uses hydrostatic pressure in order to achieve a seal.The different systems are :—The set screw, lead rivet, padlock, pneumatic lock, magnetic lock, cryptograph lock, and hydrostatic lock. — 1894 •A lock for raising and lowering boats on a canal or waterway that operates by using pressurized water to flood or drain the level inside the lock.After an empty boat has been once weighed, she is numbered, and her weight is registered at the several hydrostatic locks. — 1830 verb2 •To seize up because liquid has infiltrated a mechanism for compressing gasses.Do not pour the top lube into the carburetor too rapidly because hydrostatic locking can occur. — 1990 •To form a seal by employing a mechanism that uses hydrostatic pressure.It allows a very precise positioning of the light source, thanks to its hydrostatic locking mechanism. — 2010 formshydrostatic locked · hydrostatic locking · hydrostatic locks