DictionarymuleHybrid animal
noun

mule

MYOOL/mjuːl/

The offspring of a horse and a donkey.

The mule foal is the offspring of a male donkey and a horse mare.

A simple animal-parentage composition: an adult male donkey and an adult horse mare above, with two small converging arrows leading to their mule foal below.
Etymology

Latin mulus already named this hybrid animal. More precisely, a mule is the offspring of a male donkey and a mare; the reverse cross is called a hinny.

In context

2 Minute Classroom2:19
the classic case is a mule the offspring of a male donkey and a female horse
Speciation | Prezygotic vs Postzygoic Barriers | Forms of Reproductive Isolation

More examples

  • A mule usually has a donkey father and a horse mother.
  • Two mules pull the wagon across the field.
  • She brushes her mule after their morning ride.

Forms

mule · mules

Similar words

hinny
Specifically the offspring of a male horse and female donkey.
hybrid
A broader term for offspring of different species or varieties.