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}.
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.