Also found in: Thesaurus, Medical.
1. Of or facing the left side.
3. Zoology Relating to or being a gastropod shell that has its aperture to the left when facing the observer with the apex upward.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.