mu

¹

[ myoo, moo ]

noun

1. the 12th letter of the Greek alphabet (M, μ).
2. the consonant sound represented by this letter.
3. micron ( def 1 ).

Mu

²

[ myoo, moo ]

noun

1. another name for Lemuria ¹( def 1 ).

mu

¹

the internet domain name for

1. Mauritius

mu

²

/ mjuː /

noun

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

MU

³

abbreviation for

1. Musicians' Union

Word History and Origins

Origin of mu¹

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

Example Sentences

Methadone is a full agonist of the mu opioid receptor, meaning that when the drug meets the receptor in the brain, it activates it, causing a biochemical reaction that leads to euphoria and pain relief.

From Scientific American

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

From New York Times

If it turns out that someone doesn’t have opioids in their system, the procedure is still safe because naloxone only binds to mu opioid receptors.

From Scientific American

And as the world’s attention turned to delta and then omicron, he and his colleagues discussed whether to continue their study of old-news mu.

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