vacuum cleaner

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

• noun An electrical appliance that cleans surfaces by suction.

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

• A machine for cleaning carpets, tapestry, upholstered work, etc., by suction; -- sometimes called a vacuum.

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

• noun A domestic or industrial mobile machine for cleaning floors and similar surfaces that draws dust and other particles into a container (often a bag) by the suction created by an electric motor driving a fan.

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

• noun an electrical home appliance that cleans by suction