Definition of "sinistral" []

• Of or facing the left side. (adjective)
• Left-handed. (adjective)
• Zoology Relating to or being a gastropod shell that has its aperture to the left when facing the observer with the apex upward. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "So Dave your task as a fellow sinistral shooter is to check out the new Ruger lefty line up at the Shot Show next week and report back on anythng sexy you find (including booth babes)."
• "As its name implies and the above picture shows, B. sinistrum is a left-handed or sinistral species."
• "The Halloween zombie snail with its sinistral shell is indeed amusing."