Definition of endpoints:
(n) :
(networking, telecommunications) The entity at one end of a connection.
(n) :
(programming) Part of a system that serves as a hook, allowing third-party code to intercept and modify behaviour at that point.
(n) :
Either of the two points at the ends of a line segment.
(n) :
(speech recognition) The point in speech at which an utterance ends.
(n) :
(biology, medicine) A defined occurrence during the observation period of an experiment or study.
(n) :
(chemistry) The stage in a titration at which a change in the colour of an indicator indicates that no more titrant should be added.