from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Something which retards or slows.

from the GNU version of the Collaborative International Dictionary of English

  • n. One who, or that which, retards.
  • n. Any of various devices, as a helix of flat metal strip, introduced into a boiler tube to increase the heating effect of the fire.
  • n. A substance, as potassium bromide, added to a developer to retard its action.

from The Century Dictionary and Cyclopedia

  • n. One who retards; that which serves as a hindrance, impediment, or cause of retardation.
  • n. An obstruction, usually in the form of a twisted piece of sheet-metal, placed in a boiler-flue to retard the hot gases and make them give up their heat to the water in the boiler.
  • n. A device, such as a dash-pot, for checking the too rapid motion of any mechanism.


Sorry, no etymologies found.



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