SINISTRAL
sinistral
(adjective) of or on the left; “a sinistral gastropod shell with the apex upward has its opening on the left when facing the observer”; “a sinistral flatfish lies with the left eye uppermost”
sinistral
(adjective) preferring to use left foot or hand or eye; “sinistral individuals exhibit dominance of the left hand and eye”
Source: WordNet® 3.1
Adjective
sinistral (not comparable)
Of, facing, or on the left side.
Left-handed.
(zoology, of certain spiral shells) Having the whorls of the spire revolving or rising to the left; reversed.
(geology) Having left lateral fault movement.
Synonyms
• (of, facing, or on the left side): sinistrous
Antonyms
• (of, facing, or on the left side): dextral
Source: Wiktionary
Sin"is*tral, a.
1. Of or pertaining to the left, inclining to the left; sinistrous; -
- opposed to dextral.
2. (Zoöl.)
Definition: Having the whorls of the spire revolving or rising to the left;
reversed; -- said of certain spiral shells.
Source: Webster’s Unabridged Dictionary 1913 Edition