scroll saw

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

• noun A hand or power saw with a narrow ribbonlike blade for cutting curved or irregular shapes.

from The Century Dictionary.

• noun A saw or sawing-machine for cutting thin boards, veneers, orplates into ornamental scrollwork, or for preparing wood for inlaying.

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

• noun A fine-toothed fretsaw with an oscillating blade that can be used to cut out curves and other complicated shapes, accurately.

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

• noun fine-toothed power saw with a narrow blade; used to cut curved outlines