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sinistrorse

[ sin-uh-strawrs, si-nis-trawrs, sin-uh-strawrs ]

adjective

, Botany.
  1. (from a point of view at the center of the spiral) rising spirally in a counterclockwise manner, as a stem ( dextrorse ).

sinistrorse

/ ˌsɪnɪˈstrɔːs; ˈsɪnɪˌstrɔːs /

adjective

  1. (of some climbing plants) growing upwards in a spiral from right to left, or clockwise Compare dextrorse
“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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Derived Forms

  • ˈsinisˌtrorsely, adverb
  • ˌsinisˈtrorsal, adjective
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Other Words From

  • sin·is·trorse·ly [sin, -, uh, -strawrs-lee, sin-, uh, -, strawrs, -], adverb
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Word History and Origins

Origin of sinistrorse1

1855–60; < Latin sinistrōrsus literally, turned leftwards, contraction of *sinistriversus. See sinister, versus
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Word History and Origins

Origin of sinistrorse1

C19: from Latin sinistrōrsus turned towards the left, from sinister on the left + vertere to turn
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Example Sentences

Sinistrorse, sin′is-trors, adj. rising from left to right, as a spiral line.

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