Definition of "s-shape" [s-shape]

• A double curve resembling the letter S (noun)

WordNet. Princeton University. 2010.

• "The s-shape thing is again an issue of available space."
• "HOWEVER, I HAVE DECIDED TO SELL ONLY METAL BALANCE BIKES for 5 significant design reasons: 1. The metal frames are strong enough to allow a curve or s-shape, allowing a larger open area between the seat and front wheel/steering column."
• "He thought: The little s-shape at the end'that's the secret."