Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Constituting a very large, indefinite number; innumerable: the myriad fish in the ocean.
- adj. Composed of numerous diverse elements or facets: the myriad life of the metropolis.
- n. A vast number: the myriads of bees in the hive.
- n. Archaic Ten thousand.
Century Dictionary and Cyclopedia
- n. The number of ten thousand.
- n. An indefinitely great number.
- Numberless; innumerable; multitudinous; manifold.
GNU Webster's 1913
- n. The number of ten thousand; ten thousand persons or things.
- n. An immense number; a very great many; an indefinitely large number.
- adj. Consisting of a very great, but indefinite, number.
WordNet 3.0
- n. a large indefinite number
- n. the cardinal number that is the product of ten and one thousand
- adj. too numerous to be counted
Etymologies
- From French myriade, from Late Latin myrias (genitive of myriadis), from Ancient Greek μυριάδος (myriados), genitive of μυριάς (myrias, "number of 10,000"), from μύριος (myrios, "numberless, countless, infinite"). (Wiktionary)
- Greek mūrias, mūriad-, ten thousand, from mūrios, countless. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“The machine, code-named Blue Waters and set for delivery to the University of Illinois later this year, is the product of work completed in myriad IBM offices around the world.”
“They are demanding unbundled media, sold everywhere and in myriad assortments.”
Viacom vs. Google/YouTube, Arnold Kling | EconLog | Library of Economics and Liberty
“Donnellan has worked as director of management and finance, acting director for libraries, and in myriad other positions in the county, and she had been deputy county manager since October 2005.”
The Washington Post: Arlington's new county manager no stranger to community - or job
“A row of semis in myriad colors stretches to infinity.”
“The lack of strategic bombers manifested itself in myriad problems.”
“Are we to perpetually rely on the Courts to twist constitutional doctrines, in myriad ways, with all their resulting sorts of side effects (and benefits, too, no doubt) and absurdities in order to obviate antideluvian laws, particularly those regulating social norms?”
The Volokh Conspiracy » Recent Michigan Prosecutions for “Seducing an Unmarried Woman”
“Entrepreneurial classes are taking off nationwide in myriad versions, said Heather Van Sickle, the executive director of the National Association for Community College Entrepreneurship.”
“To always say more than it intends, to conjure up possibilities that set us off on internal flights of fancy, to gesture beyond itself in myriad ways and to tantalize with the shadows of other stories, hiding in the corners of the most realistic of narratives.”
“Akron played 10 players regularly, and in myriad combinations, but kept the chemistry working.”
“Patching security holes is not easy, since the fix must work on multiple versions of Windows and IE in myriad languages and not crash tens of thousands of different consumer and business programs.”
Lists
These user-created lists contain the word ‘myriad’.
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1100
abound, technology, branch of knowled..., prognosticate, automaton, matron, an older married ..., realm, special field of ..., kingdom, annals, historical records and 981 more...
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@vcb.etym.prjct - SAT WORD DUMP - as ...
The words on this list SAT regulars that I haven't sorted and grouped yet. It's like my wordy holding pen. get it? holding the pen to write a word? HA! I love how lame my humor is.
iconoclast, glacial, agnostic, histrionic, treacly, contemptuous, captious, bombastic, bombast, perfidy, quiescence, sordid and 148 more...
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Interesting words
A list of words that are odd or words that I have looked up.
concupiscence, brize, scree, scoria, forestaff, spanaemia, valetudinarianism, distasture, pyrethrum, laudanum, gentian, bicameral and 11184 more...
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GRE 2014
abase, abate, abdicate, aberrant, abeyance, abhor, abjure, abortive, abound, abrasive, abreast, abridge and 1577 more...
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SAT Words
But only the ones that I don't already know.
abase, abash, abominate, abstruse, acclivity, accolade, accost, adroit, adulate, adulterate, adumbrate, affray and 241 more...
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Vocabulary
shibboleth, verboten, jejune, ostensible, multifarious, quintessence, purportedly, tangential, vacillate, quagmire, wanton, onerous and 74 more...
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Really, Really Large Numbers
octillion, nonillion, decillion, undecillion, docdecillion, tredecillion, quattuordecillion, quindecillion, sexdecillion, septendecillion, octodecillion, novemdecillion and 74 more...
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PART 2: 100 Word You Should Know To B...
Here are 40 advanced English words which should you be able to use them in a sentence will impress even educated native speakers! Perfect if you want to impress the examiner in examinations like: I...
jubilant, knell, lithe, lurid, maverick, maxim, meticulous, modicum, morose, myriad, nadir, nominal and 28 more...
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GRE 1100
drudgery, implore, hapless, nuance, wrest, incipient, inadvertent, tremulous, bristle, euphemism, disdain, pugnacious and 346 more...
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big book gre
abase, abbess, abbey, abbot, abdicate, abdomen, abdominal, abduction, abed, aberration, abet, abeyance and 6691 more...
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Favorites
disparage, partisan, cupidity, hokum, tussle, odious, dastardly, overture, plane, chronic, peering, peer and 328 more...
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SAT Words
But only the ones that I don't already know.
abase, abash, abominate, abstruse, acclivity, accolade, accost, adroit, adulate, adulterate, adumbrate, affray and 241 more...
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Spelling Conundrum
mischievous, confidant, cinch, befuddle, assailant, alleviate, coax, surreptitious, myriad
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Twitter favourites
The new favourite words of people on Twitter.
A script searches Twitter for "X is my new favourite word" and adds it to this list.
See also:
thunderfuck, incredible, merp, sara, flopparoo, smother, fugly, buer, plum, canny, nefelibata, cuntbucket and 1972 more... -
Magoosh GRE
its a list of words borrowed from Magoosh GRE blog ,an indispensable resource for GRE test takers.
inimitable, exiguity, myriad, cornucopia, surfeit, glut, deluge, opaque, pellucid, grandiloquent, turgid, gadfly and 106 more...
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Words I Know
List of most of the words I've learned
garner, abase, abate, abdicate, abduct, aberration, abet, abhor, abide, abject, abjure, abnegation and 1046 more...
Tweets
Looking for tweets for myriad.

alexz Greek number for 10,000 - Wolfram Alpha.
Mar 28, 2013
t1c1 "The noun myriad has appeared in the works of such writers as Milton (plural myriads) and Thoreau (a myriad of)..." Dec 9, 2012
grainy16mm I use myriad almost exclusively as a noun, and can't help but feel I'm in the minority on this. Hearing it as an adjective has always felt strange to me.. Jun 26, 2012
Kristianto2010 These properties enable us to process amorphous carbons into a myriad of industrial
products including chemical-reducing agents, carbide-forming reagents,
metallurgical products, cathodic protection. Mar 18, 2011
chained_bear I can't see this word and not think of "Heathers." Sep 26, 2008
squareintheteeth I can't see this word and not think of the default Adobe font. Dec 18, 2006
seanahan http://www.answers.com/main/ntquery?gwp=13&s=myriad
Read the usage note. Myriad was originally a noun. Dec 2, 2006
angharad Dictionaries are linguistically descriptive. Many wordies are prescriptivist. Dec 2, 2006
brianwantium Consult a dictionary. Dec 2, 2006
dabrfe "myriad" is not a noun and should not be used as: "A myriad of folks who misuse this word." The proper use is: "Myriad folks misuse this word." Dec 2, 2006