Bible Dictionaries
Instantaneous

Webster's Dictionary

(1):

(a.) Done or occurring in an instant, or without any perceptible duration of time; as, the passage of electricity appears to be instantaneous.

(2):

(a.) At or during a given instant; as, instantaneous acceleration, velocity, etc.

Bibliography Information
Webster, Noah. Entry for 'Instantaneous'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​i/instantaneous.html. 1828.