rickettsial(redirected from Ricketts, Howard T.)
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n. pl. rick·ett·si·ae (-sē-ē′)
Any of various bacteria of the genus Rickettsia, carried as parasites by many ticks, fleas, and lice, that cause diseases such as typhus and Rocky Mountain spotted fever in humans.
[New Latin Rickettsia, genus name, after Howard Taylor Ricketts (1871-1910), American pathologist.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Adj.||1.||rickettsial - relating to or caused by rickettsias|
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