tur·tle·back 
(tûrtl-băk′)
(tûrtl-băk′)n.
Something shaped like the back of a turtle, especially:
a. Nautical An arched structure erected over the deck of a ship as protection from heavy seas.
b. Archaeology A stone tool with a convex side.
turtle·back′, turtle·backed′ adj.
- Narragansett
- Narragansett Bay
- Narragansett turkey
- narratability
- narratable
- narrate
- narration
- narrational
- narrationally
- narrative
- narratively
- narrow
- narrow-bodied
- narrowcast
- narrowcaster
- narrow gauge
- narrow-gauge
- narrow-gauged
- narrowish
- narrowly
- narrow-minded
- narrow-mindedly
- narrow-mindedness
- narrowness
- Narrows