nor

[nawr; unstressed ner]
conjunction
1.
(used in negative phrases, especially after neither, to introduce the second member in a series, or any subsequent member): Neither he nor I will be there. They won't wait for you, nor for me, nor for anybody.
2.
(used to continue the force of a negative, as not, no, never, etc., occurring in a preceding clause): He left and I never saw him again, nor did I regret it.
3.
(used after an affirmative clause, or as a continuative, in the sense of and not ): They are happy, nor need we worry.
4.
Older Use. than.
5.
Archaic. (used without a preceding neither, the negative force of which is understood): He nor I was there.
6.
Archaic. (used instead of neither as correlative to a following nor ): Nor he nor I was there.

Origin:
1300–50; Middle English, contraction of nother, Old English nōther, equivalent to ne not + ōther (contraction of ōhwæther) either; cf. or1

and, and/or, nor, or (see usage note at and)(see usage note at and/or).


See neither.
Dictionary.com Unabridged

nor-

a combining form used in the names of chemical compounds which are the normal or parent forms of the compound denoted by the base words: l-norepinephrine.

Origin:
short for normal

NOR

[nawr]
noun
a Boolean operator that returns a positive result when both operands are negative.

Origin:
1955–60

nor.

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To nor
Collins
World English Dictionary
nor (nɔː, (unstressed) nə)
 
conj, —prep (foll by an auxiliary verb or have, do, or be used as main verbs)
1.  (used to join alternatives) neither ... nor and not: neither measles nor mumps
2.  (and) not … either: they weren't talented — nor were they particularly funny
3.  dialect than: better nor me
4.  poetic neither: nor wind nor rain
 
[C13: contraction of Old English nōther, from nāhwætherneither]

nor-
 
combining form
1.  indicating that a chemical compound is derived from a specified compound by removal of a group or groups: noradrenaline
2.  indicating that a chemical compound is a normal isomer of a specified compound
 
[by shortening from normal]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

nor
c.1300, contraction of M.E. nauther (see neither). Influenced in form by or.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

nor- pref.
A precursor compound that differs from its successor by the absence of a radical group, usually methyl: norepinephrine.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
FOLDOC
Computing Dictionary

NOR definition


Not OR.
The Boolean function which is true if none of its inputs are true and false otherwise, the logical complement of inclusive OR. The binary (two-input) NOR function can be defined (written as an infix operator):
A NOR B = NOT (A OR B) = (NOT A) AND (NOT B)
Its truth table is:
A | B | A NOR B --+---+--------- F | F | T F | T | F T | F | F T | T | F
NOR, like NAND, forms a complete set of Boolean functions on its own since it can be used to make NOT, AND, OR and any other Boolean function:
NOT A = A NOR A
A OR B = NOT (A NOR B)
A AND B = (NOT A) NOR (NOT B)
(1995-02-06)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
Cite This Source
American Heritage
Abbreviations & Acronyms
NOR
  1. Norma (constellation)

  2. NOT OR (logical operator)

Nor.
  1. Norman

  2. north

  3. northern

  4. Norway

  5. Norwegian

The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
American Heritage
Idioms & Phrases

nor

see hide nor hair; neither fish nor fowl; neither here nor there; rhyme or reason (neither rhyme nor reason).

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
Cite This Source
Example sentences
Their diffuse messages are not evidence of a lack of understanding, nor of an
  emphasis on anarchism.
Nor has she ever been obnoxiously offensive either diplomatically or morally.
Do not become righteous overmuch, nor show yourself excessively wise.
Nor had dispersants been previously deployed in the volumes needed in the gulf.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature