Rocky Mountain spotted fever

noun

Definition of Rocky Mountain spotted fever

: an acute disease that is characterized by chills, fever, prostration, pains in muscles and joints, and a red to purple eruption and that is caused by a rickettsial bacteria (Rickettsia rickettsii) usually transmitted by an ixodid tick and especially the American dog tick, brown dog tick, or a wood tick (Dermacentor andersoni)

First Known Use of Rocky Mountain spotted fever

1905, in the meaning defined above

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Time Traveler for Rocky Mountain spotted fever

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The first known use of Rocky Mountain spotted fever was in 1905

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Dictionary Entries Near Rocky Mountain spotted fever

Rocky Mountain sheep

Rocky Mountain spotted fever

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Cite this Entry

“Rocky Mountain spotted fever.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Rocky%20Mountain%20spotted%20fever. Accessed 19 Jan. 2022.

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More Definitions for Rocky Mountain spotted fever

Rocky Mountain spotted fever

noun
Rocky Moun·​tain spotted fever | \ ˈräk-ē-ˈmau̇nt-ᵊn- How to pronounce Rocky Mountain spotted fever (audio) \

Medical Definition of Rocky Mountain spotted fever

: an acute bacterial disease that is characterized by chills, fever, prostration, pains in muscles and joints, and a red purple eruption and that is caused by a bacterium of the genus Rickettsia (R. rickettsii) usually transmitted by ixodid ticks and especially by the American dog tick, brown dog tick, and Rocky Mountain wood tick

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