noun (1)
\ ˈmyül How to pronounce mule (audio) \

Definition of mule

 (Entry 1 of 2)

1a : a hybrid between a horse and a donkey especially : the offspring of a male donkey and a mare
b : a self-sterile plant whether hybrid or not
c : a usually sterile hybrid
2 : a very stubborn person
3 : a machine for simultaneously drawing and twisting fiber into yarn or thread and winding it into cops
4 slang : a person who smuggles or delivers illicit substances (such as drugs)


noun (2)

Definition of mule (Entry 2 of 2)

: a shoe or slipper without quarter or heel strap — compare scuff

First Known Use of mule

Noun (1)

13th century, in the meaning defined at sense 1a

Noun (2)

1562, in the meaning defined above

History and Etymology for mule

Noun (1)

Middle English, from Anglo-French mul, from Latin mulus

Noun (2)

Middle French, a kind of slipper, from Latin mulleus shoe worn by magistrates

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Time Traveler for mule

Time Traveler

The first known use of mule was in the 13th century

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Cite this Entry

“Mule.” Dictionary, Merriam-Webster, Accessed 25 Feb. 2021.

Style: MLA
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More Definitions for mule


\ ˈmyül How to pronounce mule (audio) \

Kids Definition of mule

1 : an animal that is an offspring of a donkey and a horse
2 : a stubborn person


\ ˈmyü(ə)l How to pronounce mule (audio) \

Medical Definition of mule

: a hybrid between a horse and a donkey especially : the offspring of a male donkey and a mare

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