Transcendental meditation is a kind of meditation in which people mentally relax by silently repeating special words over and over again. The abbreviation TM is also used.
Transcendental Meditation in British English
noun
trademark US
a technique, based on Hindu traditions, for relaxing and refreshing the mind and body through the silent repetition of a mantra. Disseminated by an international organization founded by Maharishi Mahesh Yogi (1917–2008), an Indian-born guru
Abbreviation: TM
Transcendental Meditation in American English
a method of meditation based on such Hindu techniques as frequent repetition of a personal mantra