In the nature of things; in the realm of actuality; in exlst-ence. In a dilatory plea, an allegatlon that the plaintiff is not in rerum natura is equlv-alent to averring that the person named is fictitious. 3 Bl. Comm. 301. In the clvll law the phrase is applied to things. Inst 2, 20, 7
Source: Black’s Law Dictionary 2nd Ed (1910)
