reentrant /ɹiːˈɛntɹənt/adjective 8noun 3forms 1 adjective8 •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 •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. •Such that the corresponding lock can be reacquired by the locking thread.The global interpreter lock of the embedded scripting engine is not reentrant. •(historical) Designating a structure at an angle pointing inward towards the centre of the fortification; opposed to salient. •Pertaining to a type of cardiac arrhythmia in which an impulse re-excites an area that has already been stimulated. •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. •Pertaining to a type of angular valley cutting deep into the side of a hill or mountain. •Designed to return to the Earth's atmosphere. noun3 •One who enters (the labour market, etc.) again. •An angle or part that reenters itself. •A valley between a pair of parallel ridges. formsreentrants
