In being. Actually existing. Distinguished from in posse, which means “that which is not, but may be.” A child before birth is in posse; after birth, in esse.
IN ESSE
TheLaw.com Law Dictionary & Black's Law Dictionary 2nd Ed.
TheLaw.com Law Dictionary & Black's Law Dictionary 2nd Ed.
In being. Actually existing. Distinguished from in posse, which means “that which is not, but may be.” A child before birth is in posse; after birth, in esse.