Beginning to exist or grow; springing up.
- Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914. (adjective) (adj.) (adjective)
Beginning to exist or to grow.
- The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919. (adjective) (adj.) (adjective)
Beginning to exist or grow; growing; increasing; in chem., in the act of being produced or evolved.
- Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874. (adjective) (adj.) (adjective)
Springing up: arising: beginning to exist or grow.
- The american dictionary of the english language. By Daniel Lyons. Published 1899. (adjective) (adj.) (adjective)
Beginning to exist; springing up.
- The Clarendon dictionary. By William Hand Browne, Samuel Stehman Haldeman. Published 1894. (adjective) (adj.) (adjective)

Usage examples:

It was under Marcus Aurelius, the most philosophical and most conscientious of the emperors, that there was enacted for the first time in Gaul, against nascent Christianity, that scene of tyranny and barbarity which was to be renewed so often and during so many centuries in the midst of Christendom itself.
- A Popular History of France From The Earliest Times Volume I. of VI. by Francois Pierre Guillaume Guizot
Allen Golyer felt a vague sense of distrust chilling his heart as he saw Mr. Simmons' ribbons decking the pretty head in the village choir the Sunday after her return, and, spurred on by a nascent jealousy of the unknown, resolved to learn his fate without loss of time.
- Not Pretty, But Precious by John Hay, et al.
Occasions of friction constantly arose, but the determination on each side to have no more communication with the other than was absolutely necessary generally composed any nascent dispute; so long at least as Lady Tatham and a very diplomatic agent were in charge.
- The Mating of Lydia by Mrs. Humphry Ward