(computing) The study of poorly documented or undocumented legacy software implementations, as part of maintaining those systems.

(archaeology) A Bronze Age civilization of Central Asia, dated to c. 2400–1900 BCE

(obsolete) Old Chinese.

An adaptation of the sport of archery for athletes with a physical disability.

(computing) A computer architecture that uses the same buses to access both program instructions and data to be operated on.

(computing) A type of computer architecture in which instructions either load/store values between memory and CPU registers, or perform calculations on values in CPU registers, but cannot directly perform calculations on values in memory.

combat archery

(fluid dynamics) A law that states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially, is equal to the weight of the fluid that the body displaces.

(mathematics, chiefly historical) Synonym of pi

Nyctimystes perimetri, a species of Papua New Guinean tree frog.