What does "rut" mean?

Additional senses

1. 2.To have a strong sexual impulse at the reproductive period; -- said of deer, cattle, etc.
2. 3.To cover in copulation. Dryden.
3. 4.A track worn by a wheel or by habitual passage of anything; a groove in which anything runs. Also used figuratively. in a rut.
4. 5.To make a rut or ruts in; -- chiefly used as a past participle or a participial adj; as, a rutted road.