noun Chae·nac·tis \kēˈnaktə̇s\

Definition of Chaenactis

  1. :  a genus of herbs (family Compositae) found in the western U.S. and characterized by entire or pinnately lobed leaves and long peduncled heads of white or yellow flowers

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Origin and Etymology of chaenactis

New Latin, from Greek chainein to gape + aktis ray; akin to Latin hiare to gape — more at yawn, actino-

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a rounded knoll or a ridge of ice

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