Dictionary.com
Thesaurus.com

mu

1 American  
[myoo, moo] / myu, mu /

noun

  1. the 12th letter of the Greek alphabet (M, μ).

  2. the consonant sound represented by this letter.

  3. micron.


Mu 2 American  
[myoo, moo] / myu, mu /

noun

  1. another name for Lemuria.


MU 1 British  

abbreviation

  1. Musicians' Union

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mu 2 British  
/ mjuː /

noun

  1. the 12th letter in the Greek alphabet (Μ, μ), a consonant, transliterated as m

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mu 3 British  

abbreviation

  1. Mauritius

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of mu

First recorded in 1895–1900, mu is from the Greek word

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The studies focus on a group of experimental pain-relieving compounds that act on mu opioid receptors.

From Science Daily

However, naltrexone, in both short- and long-acting forms, has the opposite pharmacology: it antagonizes mu receptors, occupying them without activating them.

From Scientific American

This part is called il mu, which can be translated as “line dance” or “one dance.”

From New York Times

Delta was not as skilled at dodging antibodies as mu, but it was more transmissible.

From Seattle Times

He believes that a little more time with restrictions could mean that BA.2 fizzles out, like the mu variant did.

From Salon