First recorded in 1810–20; diamond + back1 (Source: dictionary.com)
Definitions of Diamondback
bearing diamond-shaped marks, designs, or configurations on the back.
Also called: diamondback terrapin, diamondback turtle any edible North American terrapin of the genus Malaclemys, esp M. terrapin, occurring in brackish and tidal waters and having diamond-shaped markings on the shell: family Emydidae
a large North American rattlesnake, Crotalus adamanteus, having cream-and-grey diamond-shaped markings
A common large North American rattlesnake with diamond-shaped markings.
: having marks like diamonds or lozenges on the back
Example sentences for Diamondback
It was a diamondback rattler, and lay coiled on the rug at my feet.