1. Concave on one side and convex on the other with the concavity being greater than the convexity

See also: concave

• solvent
• solver
• solving
• Solway Firth
• Solzhenitsyn
• som
• soma
• somaesthesia
• somaesthesis
• Somali
• Somali peninsula
• Somalia
• Somalian
• Somalian monetary unit
• Somalian shilling
• soman
• somataesthesis
• Somateria
• somatesthesia
• somatic
• somatic cell
• somatic cell nuclear transfer
• somatic cell nuclear transplantation
• somatic chromosome
• somatic delusion