There are 2 definitions of mule in English:

mule1

Syllabification: mule
Pronunciation: /myo͞ol
 
/

noun

1The offspring of a donkey and a horse (strictly, a male donkey and a female horse), typically sterile and used as a beast of burden. Compare with hinny1.
More example sentences
  • The Israelites used various beasts of burden - mules, horses, camels and oxen.
  • The pack mules carrying the gold ore scattered in all directions, spilling ore over a wide area.
  • Instead we often get stuck riding a reliable mule up a rough trail.
1.1A person compared to a mule, especially in being stubborn or obstinate.
More example sentences
  • We're two stubborn old mules who need to have their own way.
  • An angry David Whitechapel was a stubborn mule, which refused to budge.
  • I don't think Franzen is particularly gifted but he is a mule.
1.2 informal A courier for illegal drugs.
More example sentences
  • The profits are enormous and there is no shortage of impoverished drugs mules prepared to swallow tiny packets of pure cocaine and smuggle them into Britain.
  • This is an indication that international drugs gangs are increasingly using mules to smuggle the narcotic into the country.
  • Police warned that she and other sniffer dogs would be regularly used to stop so-called human mules bringing down drugs from London to sell in Southampton and Portsmouth.
1.3A small tractor or locomotive, typically one that is electrically powered.
More example sentences
  • The trolley pole is mounted on a cylindrical bearing member secured to the side of an electric mule or locomotive for pivotal movement about a vertical axis.
  • Mules are very tough machines and are about the perfect size.
2A hybrid plant or animal, especially a sterile one.
More example sentences
  • Finch mules have always been more difficult to breed than the canaries or finches themselves, but some were less difficult than others.
  • Some of the considerable biodiversity of corals may come from underwater versions of mules, say researchers.
  • A total of 989 female ducks were studied over three generations, as well as 4025 purebred offspring and 4125 male mule offspring.
2.1Any of several standard crossbred varieties of sheep.
More example sentences
  • Special sale of mules, Greyface ewe lambs, on Saturday, September 11.
  • Another local farmer, Neil Heseltine, from Malham, was awarded a prize for his local pair of mule gimmer lambs.
3 (also spinning mule) A kind of spinning machine producing yarn on spindles, invented by Samuel Crompton (1753–1827) in 1779.
More example sentences
  • His near contemporary, the shy and upright Samuel Crompton invented the spinning mule that allowed Britain to corner the market in fine-spun cottons.
  • When we look at it now we think of the great inventor Samuel Crompton, who grew up there and invented his spinning mule within its walls.
  • After the invention of the hand-operated cotton mule spinning machine in the 1760's, that time dropped to 300 hours.
4A coin with the obverse and reverse of designs not originally intended to be used together.
More example sentences
  • There are three recognised mule coins from the Republic of India.
  • On Feb. 7 of that year, the Secret Service, after examining the mule, returned the coin to Baller, accompanied by a letter from Special Agent Richard M. McDrew.

Origin

Old English mūl, probably of Germanic origin, from Latin mulus, mula; reinforced in Middle English by Old French mule.

Definition of mule in:

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Word of the day anomalous
Pronunciation: əˈnämələs
adjective
deviating from what is standard, normal, or expected

There are 2 definitions of mule in English:

mule2

Syllabification: mule
Pronunciation: /myo͞ol
 
/

noun

A slipper or light shoe without a back.
More example sentences
  • Throwbacks to a swell fashion trend of yesteryear, they spice up any pair of shoes, from ballet flats to mules or slinky stilettos.
  • A bare foot is what grips your foot to the shoe and keeps the mules from being treacherous.
  • Avoid skinny heels, even if they're low, and avoid mules or slingbacks until you're more comfortable.

Origin

mid 16th century: from French, 'slipper'.

Definition of mule in: