deadfall

(from the article `American Subarctic peoples`) ...for different kinds of game; lances; the spear-thrower (or atlatl) and spear; weirs and basket traps for fish; nets of willow bark and of other ...
Found on http://www.britannica.com/eb/a-z/d/20

Deadfall

A tangled mass of fallen trees or branches.
Found on http://www.americantrails.org/

deadfall

A tree that has fallen into the water.
Found on http://www.azgfd.gov/h_f/fishing_glossary.shtml
No exact match found