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 [doh-meyn]   Origin

do·main

   [doh-meyn]
noun
1.
a field of action, thought, influence, etc.: the domain of science.
2.
the territory governed by a single ruler or government; realm.
3.
a realm or range of personal knowledge, responsibility, etc.
4.
a region characterized by a specific feature, type of growth or wildlife, etc.: We entered the domain of the pine trees.
5.
Law. land to which there is superior title and absolute ownership.
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6.
Mathematics.
a.
the set of values assigned to the independent variables of a function.
b.
region (def. 11a).
7.
Computers.
a.
a group of computers and devices on a network that are administered under the same protocol.
b.
the top level in a domain name, indicating the type of organization, geographical location, or both, and officially designated in the suffix, as .com for commercial enterprises in the U.S.
8.
Physics. one of many regions of magnetic polarity within a ferromagnetic body, each consisting of a number of atoms having a common polarity, and collectively determining the magnetic properties of the body by their arrangement.
9.
Crystallography. a connected region with uniform polarization in a twinned ferroelectric crystal.
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Origin:
1595–1605; < French domaine, alteration, by association with Latin dominium dominium, of Old French demeine < Late Latin dominicum, noun use of neuter of Latin dominicus of a master, equivalent to domin(us) lord + -icus -ic

Related forms
do·ma·ni·al, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Domains is always a great word to know.
So is flibbertigibbet. Does it mean:
a chattering or flighty, light-headed person.
a fool or simpleton; ninny.
LEARN MORE UNUSUAL WORDS WITH WORD DYNAMO...
Etymonline
Word Origin & History

domain
c.1425, in Scottish dialect, from M.Fr. domaine, from O.Fr. demaine "lord's estate," from L. dominium "property, dominion," from dominus "lord, master, owner," from domus "house" (see domestic). Form infl. in O.Fr. by M.L. domanium "domain, estate."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

domain do·main (dō-mān')
n.
One of the homologous regions that make up an immunoglobulin's heavy and light chains and serve specific immunological functions.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
domain   (dō-mān')  Pronunciation Key 

  1. Mathematics The set of all values that an independent variable of a function can have. In the function y = 2x, the set of values that x (the independent variable) can have is the domain. Compare range.

  2. Computer Science A group of networked computers that share a common communications address.

  3. Biology A division of organisms that ranks above a kingdom in systems of classification that are based on shared similarities in DNA sequences rather than shared structural similarities. In these systems, there are three domains: the archaea, the bacteria, and the eukaryotes.

  4. Physics A region in a ferromagnetic substance in which the substance is magnetized with the same polarization throughout.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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