from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Not typical, usual, or regular; not normal; deviant.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A person or object that is not normal.
from the GNU version of the Collaborative International Dictionary of English
- adj. Not conformed to rule or system; deviating from the type; anomalous; irregular.
from The Century Dictionary and Cyclopedia
- Not conformed or conforming to rule; deviating from a type or standard; contrary to system or law; irregular; unnatural.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. departing from the normal in e.g. intelligence and development
- adj. much greater than the normal
- adj. not normal; not typical or usual or regular or conforming to a norm
Alteration (influenced by ab-1) of obsolete anormal, from Medieval Latin anormālis, blend of Late Latin abnormis (Latin ab-, away from; see ab-1 + Latin norma, rule; see anomalous.(American Heritage® Dictionary of the English Language, Fourth Edition)
ab- + normal. First attested in 1835, replacing the earlier anormal and even earlier abnormous, from Latin abnormis ("departing from normal"), from either (ab- ("away from") + norma ("rule, norm")), or Ancient Greek ἀνώμαλος (anōmalos). (Wiktionary)