superhelix /sooˈ or sūˈpər-hē-liks/

A supercoil

• whirlwinds
• whirly
• whirlybird
• whirlybirds
• whirr
• whirred
• whirret
• whirreted
• whirreting
• whirrets
• whirried
• whirries
• whirring
• whirrings
• whirrs
• whirry
• whirrying
• whirs
• whirtle
• whirtles
• whish
• whished
• whishes
• whishing
• whisht