1. Superimposable on its mirror image

Encyclopedia: Amphichiral

• spitball
• spitchcock
• spite
• spiteful
• spitefully
• spitefulness
• spitfire
• Spitsbergen
• spitter
• spitting
• spitting cobra
• spitting image
• spitting snake
• spittle
• spittle insect
• spittlebug
• spittoon
• spitz
• Spitzbergen
• spiv
• Spizella
• Spizella arborea
• Spizella passerina
• Spizella pusilla
• splanchnic