TURTLEBACK

Etymology

Noun

turtleback (plural turtlebacks)

Anything having the shape of a turtle's back (that is, its shell).

(nautical) A convex deck at the bow or stern of a vessel, designed to shed seawater quickly.

A primitive stone celt of a form suggesting the back of a turtle.

A library binding of a mass market paperback with a generic hardcover.

Any plant of the genus Psathyrotes of annual and perennial forbs and low subshrubs native to dry areas of southwestern North America.

Source: Wiktionary

Tur"tle*back`, n.

1. (Archæol.) A rude stone celt of a form suggesting the back of a turtle.

2. (Naut.) A convex deck at the bow or stern of a vessel, so made to shed the seas quickly.

Source: Webster’s Unabridged Dictionary 1913 Edition