1. (Science: physiology) sexual desire or oestrus of deer, cattle, and various other mammals; heat; also, the period during which the oestrus exists.
2. Roaring, as of waves breaking upon the shore; rote. See Rote.
Origin: F. Rut, OF. Ruit, L. Ruditus a roaring, fr. Rugire to roar; -sp called from the noise made by deer in rutting time.