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Dictionary Suite
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rationalize to account for (one's behavior, events, or the like) with apparently reasonable, but self-serving, explanations. [3 definitions]
ratite of birds, having a flat, ridgeless breastbone. [2 definitions]
rat kangaroo any of various small ratlike kangaroos that are about the size of a rabbit.
ratline any of the pieces of rope tied horizontally between a ship's shrouds like rungs on a ladder, which permit climbing.
rat mite a widespread mite carried by rats that can transmit typhus to humans or cause inflammation of the skin by its bite.
rat race (informal) an exhausting, competitive struggle or routine.
ratsbane a poison for rats, esp. arsenic trioxide.
rat snake any of several nonpoisonous snakes of North America and Eurasia that eat rodents and other small mammals.
rattail slim and tapering like a rat's tail.
rat-tail any of several deep-sea fishes with a large head and a long, tapering tail; grenadier.
rattail cactus a small, tropical cactus of Mexico and Central America having thin, drooping stems and bearing bright crimson flowers, widely cultivated as a houseplant.
rattan a climbing palm plant with long, tough, pliable stems. [2 definitions]
ratter an animal, such as a cat or terrier, that is skilled at catching rats.
rattle to make a series of hard, short, knocking sounds. [9 definitions]
rattlebox a plant related to the pea, bearing seeds that rattle in their pods when ripe.
rattlebrain a silly, frivolous, overly talkative person.
rattle off to list or recite quickly, esp. from memory.
rattler a rattlesnake. [2 definitions]
rattlesnake a venomous pit viper of the Americas that has a segmented structure at the end of its tail which vibrates with a rattling sound.
rattlesnake plantain any of several ground orchids with mottled leaves, found in northern climates.
rattlesnake root any of various plants whose bitter roots or tubers have been thought to cure snakebite.