Is there a true definition for the word "Rut". some experts say its when the bucks are breeding the does. some ppl say its when

[MNwhitetailHunter]

Is there a true definition for the word "Rut". some experts say its when the bucks are breeding the does. some ppl say its when bucks are chasing does. i guess maybe most of the bucks are paired up w/ does during he rut and some aren't (ex: small bucks). what do u think?