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3.
1) 10,000 - (Roman)
2) an unspecified large number (of things) - (Greek)
3) the reciprocal of permyriad (‱)
I will be busy today as I have myriad things to do.
There are myriad fish in the sea.
The universe has myriad stars, planets and comets.
by Nutralizr May 30, 2011
 
1.

1. So many of something that they cannot be counted.

2. Something made up of many different components.

1. Myriad ducks.
2. The Dutch Deltas are built is myriad.
by Jafje June 27, 2007
 
2.
Many in number. Used solely as an adjective.
Last night I j-ed myriad times.
by Wangle May 22, 2005
 
4.
it is a fancy word for NUMEROUS that one learns in college or highschool. it is often used by tv broadcasters to make themself sound smarter. many of them put an article in front of it and say, THERE WAS A MYRIAD, thus actually sounding dumber.
cnn reporter - there are a myriad of ways to get the job done in the capital.
by von struedelburg October 15, 2013