1. New; recent: Neolithic.
a. New and different: neoimpressionism.
b. New and abnormal: neoplasm.
3. New World: Neotropical.
4. Young: neoteny.
[Greek, from neos, new, young; see newo- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.