floss

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

• noun Dental floss.
• noun Short or waste silk fibers, especially from the outer surface of the cocoon of a silkworm.
• noun Soft, loosely twisted thread, as of silk or cotton, used in embroidery.
• noun A downy or silky fibrous substance, such as corn silk or silk cotton.
• intransitive verb To clean between (teeth) with dental floss.
• intransitive verb To use dental floss.

from The Century Dictionary.

• noun A fluid glass floating upon iron in a puddling-furnace, produced by the vitrification of oxids and earths.
• noun Same as floss-hole.
• noun A downy or silky substance inclosed by the husks of certain plants, as maize and milkweed.
• noun Same as floss-silk.
• noun The leaves of red canary-grass; also, the common rush.
• noun The loose silk which envelops the cocoon-pod of the silkworm.
• noun A small stream of water: used as a name in the extract.

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

• noun (Bot.) The slender styles of the pistillate flowers of maize; also called silk.
• noun Untwisted filaments of silk, used in embroidering.
• noun A body feather of an ostrich. Flosses are soft, and gray from the female and black from the male.
• noun silk that has been twisted, and which retains its loose and downy character. It is much used in embroidery. Called also floxed silk.
• noun a kind of soft flaxen yarn or thread, used for embroidery; -- called also linen floss, and floss yarn.
• noun engraving A small stream of water.
• noun Fluid glass floating on iron in the puddling furnace, produced by the vitrification of oxides and earths which are present.
• noun The tap hole of a melting furnace.

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

• noun UK A small stream of water.
• noun Fluid glass floating on iron in the puddling furnace, produced by the vitrification of oxides and earths which are present.
• noun a thread, used to clean the area between the teeth
• noun silk fibres
• noun the fibres covering a corn cob
• noun Any thread-like material having parallel strands that are not spun or wound around each other.
• noun UK Spun sugar or cotton candy, especially in the phrase "candy floss".
• verb To clean the area between the teeth using floss.
• verb African American Vernacular To show off, especially by exhibiting one’s wealth or talent.

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

• verb use dental floss to clean
• noun a soft thread for cleaning the spaces between the teeth
• noun a soft loosely twisted thread used in embroidery