faller

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun One who cuts down trees; a lumberjack or feller.
• noun A machine part or device that operates by falling.

from The Century Dictionary.

• noun In lumbering, one who fells trees.
• noun One who or that which falls or causes to fall.
• noun Specifically, in machinery: In cotton manufacturing, one of the small arms on a mule-carriage which bears the faller-wire.
• noun In a fulling-, milling-, or stamping-machine, a stamp which is generally raised by the cams, and then falls vertically and endwise.
• noun In flax-manuf., a bar in the spreading-machine having numerous vertical needles forming a comb or gills; a gill-bar. It detains the line somewhat as it passes the drawing-roller.
• noun In silk-manuf. See faller-wire, 2.
• noun The hen-harrier

from the GNU version of the Collaborative International Dictionary of English.

• noun One who, or that which, falls.
• noun (Mach.) A part which acts by falling, as a stamp in a fulling mill, or the device in a spinning machine to arrest motion when a thread breaks.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun One who falls.
• noun engineering A part which acts by falling, such as a stamp in a fulling mill, or the device in a spinning machine to arrest motion when a thread breaks.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a person who fells trees
• noun a person who falls