1. (chemistry) able to be superimposed on its mirror image; not chiral

Encyclopedia: Achiral

• alkylbenzene
• alkylbenzenesulfonate
• alkylic
• alkyne
• all
• all along
• all around
• all arounder
• all at once
• all but
• all clear
• all day long
• all ears
• all fired up
• All Fools' day
• all fours
• all get out
• all in
• all in all
• all of a sudden
• all right
• All Saints' Day
• All Souls' Day
• all the best
• all the rage