deadfall

UK: /ˈdɛdˌfɔːl/ US: (ded′fôl′)

WordReference Random House Unabridged Dictionary of American English © 2025

dead•fall  (ded′fôl′), n. 

1. Sport a trap, esp. for large game, in which a weight falls on and crushes the prey.
2. a mass of brush and fallen trees.

• dead + fall 1605–15

Collins Concise English Dictionary © HarperCollins Publishers::

deadfall / ˈdɛdˌfɔːl/ noun

1. a type of trap, used esp for catching large animals, in which a heavy weight falls to crush the prey
   Also called: downfall