from The American Heritage® Dictionary of the English Language, 4th Edition
- New; recent: Neolithic.
- New and different: neoimpressionism.
- New and abnormal: neoplasm.
- New World: Neotropical.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- Having a structure, similar to that of neopentane, in which each hydrogen atom of a methyl group has been replaced by an alkyl group
from the GNU version of the Collaborative International Dictionary of English
- A prefix meaning new, recent, late; and in chemistry designating specifically that variety of metameric hydrocarbons which, when the name was applied, had been recently classified, and in which at least one carbon atom is connected directly with four other carbon atoms; -- contrasted with normal and iso-
from The Century Dictionary and Cyclopedia
- n. An element meaning ‘new,’ ‘young,’ ‘recent,’ used in many words of Greek origin or formation to denote that which is new, modern, recent, or innovating in character.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. (used as a combining form) recent or new
Greek, from neos, new; see newo- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek prefix νεο- (neo-), from νέος (neos, "new, young"). (Wiktionary)