re-entrant

Adjective

reentrant (not comparable)

1. (historical) Designating a structure at an angle pointing inward towards the centre of the fortification; opposed to salient.
2. Pertaining to an angle pointing inwards, or to a line forming part of such an angle.
   • [T]he eye was enclosed in a six-pointed star, and swords with undulating blades issued from each re-entrant angle.1917, Aleister Crowley, Moonchild, Weiser, published 2010, page 78
3. Pertaining to a type of angular valley cutting deep into the side of a hill or mountain.
4. Pertaining to a type of cardiac arrhythmia in which an impulse re-excites an area that has already been stimulated.
5. Designating a way of tuning the strings of certain stringed instruments, such that they follow a pattern of rising and falling intervals, rather than having successively higher pitches.
6. That may be executed more than once at a time either by different threads, or because of recursion.
   • Global variables must not be altered by reentrant code.

See all 11 meanings of reentrant