Definition of "sinistrorse" []

• Growing upward in a spiral that turns from right to left: a sinistrorse vine. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Other plants twining spirally around an axis from right to left are called sinistrorse or sinistrorsal."
• "It's not that Turnbull is stupid-he can quote Kierkegaard and Pascal on angst and allude to the deaths of Schubert and Mozart and distinguish between a sinistrorse and a dextrorse Polygonum vine, etc."