This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Something which retards or slows.

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.

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.

"Then Tartov asked, "Lew, does Earth have something called a retarder-field?""

m'attendre    jew-baiter    sorption    wah-wah    hernandez