superhelix /sooˈ or sūˈpər-hē-liks/

A supercoil

• ytterbia
• ytterbias
• ytterbium
• ytterbiums
• yttria
• yttrias
• yttric
• yttriferous
• yttrious
• yttrium
• yttriums
• yttrocerite
• yttro-columbite
• yttro-columbites
• yttro-tantalite
• yu
• yuan
• yuca
• yucas
• yucca
• yuccas
• yuck
• yucked
• yucker
• yuckers