sinistro-

sinistro-

a combining form meaning “left, on the left,” used in the formation of compound words: sinistrodextral.

Origin:
< Latin sinistr-, stem of sinister (see sinister) + -o-

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Medical Dictionary

sinistro- or sinistr-
pref.

  1. Left: sinistral.

  2. Levorotatory: sinistrotorsion.

The American Heritage® Stedman's Medical Dictionary
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