Computer memory that requires a periodic refresh to maintain its contents. This memory is usually cheaper and faster than ROM.

Changing; active; in motion. / Powerful; energetic. / Able to change and adapt. / (music) Having to do with the volume of sound.

A characteristic or manner of an interaction; a behavior. / (physics) A moving force. / (music) The varying loudness or volume of a song or the markings that indicate the loudness.

(mechanics) The branch of mechanics that is concerned with the effects of forces on the motion of objects. / (music) The volume of the sound, such as piano, mezzo piano, mezzo forte, and forte.

A unit of force in the CGS system; the force required to accelerate a mass of one gram by one centimetre per second per second. Symbol: dyn.

(physics) An electricity generator; a dynamo-electric machine. / (astrophysics) The mechanism by which a celestial body, such as the Earth or a star, generates a magnetic field.

A dynasty in 13th-century India, founded by a Turkish ex-slave.

A series of rulers or dynasts from one family. / (East Asian history) The polity or historical era under the rule of a certain dynasty.

Of a dynamic nature; variable or constantly changing nature.

A class of explosives made from nitroglycerine in an absorbent medium such as kieselguhr, used in mining and blasting; invented by Alfred Nobel in 1867.