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ratbite fever either of two infectious diseases transmitted by the bites of rats or other animals, one characterized by inflammation, back and joint pains, headache, and vomiting, and the other by a purplish rash, recurrent fever, and ulceration near the bite.
ratchet a toothed bar or wheel made to be engaged by a pawl so that motion is permitted in only one direction.
rate1 a quantity calculated with regard to another measured quantity. [12 definitions]
rate2 to scold or berate (someone).
ratel a badgerlike carnivore of Africa and India; honey badger.
rate of exchange see exchange rate.
ratepayer someone who pays a usu. regular charge for the use of a utility such as electricity.
-rater someone or something that has (such) a rating.
rather more willingly; sooner. [4 definitions]
rathskeller a German-style restaurant or bar located below street level.
ratification the act of ratifying; formal approval or sanction, esp. by a legislature. [2 definitions]
ratify to validate, confirm, or establish (something) by giving formal approval or consent.
ratin้ a loosely woven cloth with a knotty or nubby surface; sponge cloth.
rating1 an assignment of status according to a system of classification, esp. a scale; standing; rank.
rating2 a harsh scolding.
ratio a proportional relation between numbers or things based on amount or degree. [2 definitions]
ratiocinate to think logically; reason.
ratiocination the process of thinking logically; reasoning.
ration a fixed amount allotted by an authority, as of scarce goods in wartime; authorized share. [5 definitions]
rational sensible or reasoned. [4 definitions]
rationale a fundamental reason for doing or being; basis. [2 definitions]