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[sur-suh-neyt] /ˈsɜr səˌneɪt/
made round; ring-shaped.
Botany, Mycology. rolled up on the axis at the apex, as a leaf or fruiting body.
Origin of circinate
1820-30; < Latin circinātus (past participle of circināre to make round), equivalent to circin(us) pair of compasses (akin to circus) + -ātus -ate1
Related forms
circinately, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for circinate
Historical Examples
  • Scorpioid or Scorpioidal, curved or circinate at the end, 77.

  • Most Ferns are circinate in the bud; that is, are rolled up in the manner shown in Fig. 197.

British Dictionary definitions for circinate


(botany) (of part of a plant, such as a young fern) coiled so that the tip is at the centre
(anatomy) resembling a ring or a circle
Derived Forms
circinately, adverb
Word Origin
C19: from Latin circināre to make round, from circinus pair of compasses, from circus, see circus
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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circinate in Medicine

circinate cir·ci·nate (sûr'sə-nāt')
Circular; ring-shaped.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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circinate in Science
Rolled up in the form of a coil with the tip in the center, as an unexpanded fern frond. See more at vernation.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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