noun. A periodic state of heightened sexual activity and aggression in adult male elephants, characterized by the discharge of secretions from glands near the eyes and the continuous dribbling of urine.

noun. A time during which male elephants exhibit increased levels of sexual activity and aggressiveness.

noun. an annual phase of heightened sexual excitement in the males of certain large mammals (especially elephants); is associated with discharge from a gland between the eye and ear

"The exact chemical blend of a pheromone emitted by older male elephants in musth influences both a female elephant's interest in mating and how other surrounding elephants behave, a new study has found."

phase  stage