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View synonyms for sinistral

sinistral

[ sin-uh-struhl ]

adjective

  1. of, relating to, or on the left side; left ( dextral ).
  2. (of certain gastropod shells) coiling counterclockwise, as seen from the apex.


sinistral

/ ˈsɪnɪstrəl /

adjective

  1. of, relating to, or located on the left side, esp the left side of the body
  2. a technical term for left-handed
  3. (of the shells of certain gastropod molluscs) coiling in a clockwise direction from the apex
“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

  • ˈsinistrally, adverb
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Other Words From

  • sinis·tral·ly adverb
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Word History and Origins

Origin of sinistral1

First recorded in 1425–75; late Middle English word from Medieval Latin word sinistrālis. See sinister, -al 1
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Word History and Origins

Origin of sinistral1

C15 (in the obsolete sense: adverse, evil); C19 (in current senses): from Medieval Latin sinistrālis. See sinister
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Example Sentences

A genus of minute land shells, resembling Vertigo, but separated because they are dextral, while Vertigo is sinistral.

Dextral animals, with shell coiled pseudo-sinistrally; operculum with sinistral spiral; pallial cavity dorsal.

Shell bulimoid, dextral or sinistral; radular teeth, expanded at their extremities and multicuspidate.

Visceral mass and shell sinistral; inferior pallial lobe very prominent, and transformed into a branchia.

If we were very fortunate, we might find a sinistral, or “left-handed” specimen.

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