turtleback

noun tur·tle·back \ ˈtər-tᵊl-ˌbak \
|Updated on: 12 Jun 2018

Definition of turtleback

: a raised convex surface

turtleback

or turtle-backed play \ˈtər-tᵊl-ˌbakt\ adjective

First Known Use of turtleback

1872

in the meaning defined above

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