1. A shape that curves or bends inward
   - concave shape, concavity, incurvation

Derived forms: incurvatures

Type of: solid

• diapsid reptile
• Diapsida
• diarchy
• diarist
• diarrhea
• diarrheal
• diarrheic
• diarrhetic
• diarrhoea
• diarrhoeal
• diarrhoeic
• diarrhoetic
• diarthrosis
• diary
• diary keeper
• Dias
• Diaspididae
• diaspora
• diaspore
• diastase
• diastasis
• diastema
• diaster
• diastole
• diastolic