(engineering) The predicted mean average time taken for a part or system to fail for the first time.

A standard defining a standardized isotopic composition of water.

Alternative form of mealtide

plural of meal-tide

(slang, vulgar) the labia majora

(an expression of) the doctrine that all knowledge is subjective, being derived from observations made by humans, and there can be no objective truth

An avowal of anger towards someone, suggesting revenge is now sought.

plural of meat stick

(slang, vulgar) The penis.

Alternative form of in the meantime