alphabet

Backbone

Definition of backbone:

part of speech: noun

The bone of the back, the vertebral column; also, firmness, stability of purpose, energy. ( Amer.).

part of speech: noun

The spine; firmness; courage.

Usage examples for backbone:

Word of the day

Ornithorhynchus

An animal in Australia, with a body like an otter and a snout like the bill of a duck, also called Duckbill. ...

more