say it: RAT-uhl-snayk
rattlesnake is a noun meaning "pit viper with horny segments at the end of the tail that rattle when shaken". It carries one recorded sense.
pit viper with horny segments at the end of the tail that rattle when shaken
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for rattlesnake come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.
147,478 entries in AltF Lexicon, every one with its syllables marked.
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