orthodontia/awthəʹdonshi·ə/ noun

• rocambole
• Rochelle salt
• roche moutonnée
• rochet
• rock
• rockabilly
• rock and roll
• rock bottom
• rock-bottom
• rockbound
• rock cake
• rock chick
• rock cress
• rock crystal
• rock dove
• rocker
• rocker switch
• rockery
• rocket
• rocketeer
• rocketry
• rocket science
• rocket scientist
• rockfall
• rockfish