nor

conjunction

(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.

(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.

(used after an affirmative clause, or as a continuative, in the sense of and not ): They are happy, nor need we worry.

Older Use. than.

Archaic. (used without a preceding neither, the negative force of which is understood): He nor I was there.

Archaic. (used instead of neither as correlative to a following nor ): Nor he nor I was there.

Relevant Questions

What Is A Nor Easter?

How Can Nor Be Used?

What Is A Nor Easter?

How Can Nor Be Used?

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

Can be confused: and, and/or, nor, or (see usage note at and)(see usage note at and/or).

Usage note
See neither.

00:10

Nor is always a great word to know.

So is lollapalooza. Does it mean:

a chattering or flighty, light-headed person.

an extraordinary or unusual thing, person, or event; an exceptional example or instance.

LEARN MORE UNUSUAL WORDS WITH WORD DYNAMO...

Dictionary.com Unabridged

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

noun

a Boolean operator that returns a positive result when both operands are negative.

Origin:
1955–60

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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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
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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
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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.
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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
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American Heritage

Abbreviations & Acronyms

NOR