Mule word meaning and definition

[noun] sterile offspring of a male donkey and a female horse
[noun] a slipper that has no fitting around the heel

\Mule\ (m[=u]l), n. [F., a she-mule, L. mula, fem. of mulus; cf. Gr. my`klos, mychlo`s. Cf. AS. m[=u]l, fr. L. mulus. Cf. {Mulatto}.] 1. (Zo["o]l.) A hybrid animal; specifically, one generated between an ass and a mare, sometimes a horse and a she-ass. See {Hinny}. Note: Mules are much used as draught animals. They are hardy, and proverbial for stubbornness. 2. (Bot.) A plant or vegetable produced by impregnating the pistil of one species with the pollen or fecundating dust of another; -- called also {hybrid}. 3. A very stubborn person. 4. A machine, used in factories, for spinning cotton, wool, etc., into yarn or thread and winding it into cops; -- called also {jenny} and {mule-jenny}. {Mule armadillo} (Zo["o]l.), a long-eared armadillo (Tatusia hybrida), native of Buenos Aires; -- called also {mulita}. See Illust. under {Armadillo}. {Mule deer} (Zo["o]l.), a large deer ({Cervus, or Cariacus, macrotis}) of the Western United States. The name refers to its long ears. {Mule pulley} (Mach.), an idle pulley for guiding a belt which transmits motion between shafts that are not parallel. {Mule twist}, cotton yarn in cops, as spun on a mule; -- in distinction from yarn spun on a throstle frame.

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