Quickening
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
In medical jurisprudence. The first motion of the fœtus in the womb felt by the mother, occurring usually about the middle of the term of pregnancy.
See Com. v. Parker, 9 Mete, (Mass.) 266, 43 Am. Dec. 396; State v. Cooper, 22 N. J. Law, 57, 51 Am. Dec. 248; Evans v. Pcople, 49 N. Y. 89.