culmen /kulˈmen/

1. The highest point
2. The top ridge of a bird's bill

• peristaltically
• peristerite
• peristerites
• peristeronic
• peristomal
• peristomatic
• peristome
• peristomes
• peristomial
• peristrephic
• peristylar
• peristyle
• peristyles
• peritectic
• perithecia
• perithecial
• perithecium
• periti
• peritonaeal
• peritonaeum
• peritonaeums
• peritonea
• peritoneal
• peritoneoscopy
• peritoneum