What is Quickening?

Quickening definition and meaning on Dictionary terms:
verb (used with object)
to make more rapid; accelerate; hasten: She quickened her pace.
to give or restore vigor or activity to; stir up, rouse, or stimulate: to quicken the imagination.
to revive; restore life to: The spring rains quickened the earth.

verb (used without object)
to become more active, sensitive, etc.: This drug causes the pulse to quicken.
to become alive; receive life.
(of the mother) to enter that stage of pregnancy in which the fetus gives indications of life.

(of a fetus in the womb) to begin to manifest signs of life.


reference: https://www.dictionary.com/browse/quickening