n.
Function: verb
Inflected Form: stam · ped · ed ; stam · ped · ing
Date: 1838
transitive verb
1 : to cause to run away in headlong panic
2 : to cause (as a group of people) to act on sudden or rash impulse
intransitive verb
1 : to flee headlong in panic
2 : to act on mass impulse
– stam · ped · er noun