sinistrorse


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Related to sinistrorse: dextrose

sin·is·trorse

(si-nĭs-trōrs),
Turned or twisted to the left.
[L. sinistrorsus, on the left side, fr. sinister, left, + verto, pp. versus, to turn]

sinistrorse

having an anti-clockwise or left-handed spiral form as do most gastropod shells.