1. Capable of changing the direction (of a light or sound wave)
   - refractive

See also: crooked, deflect

• hairdressing
• haired
• hairgrip
• hairiness
• hairless
• hairlessness
• hairlike
• hairline
• hairline fracture
• hairnet
• hairpiece
• hairpin
• hairpin bend
• hairsbreadth
• hairsplitter
• hairsplitting
• hairspring
• hairstreak
• hairstreak butterfly
• hairstyle
• hairstylist
• hairtail
• hairweaving
• hairy
• hairy darling pea