spine

spine

noun \ˈspīn\

Definition of SPINE

1

a : spinal column

b : something resembling a spinal column or constituting a central axis or chief support

c : the part of a book to which the pages are attached and on the cover of which usually appear the title and author's and publisher's names

2

: a stiff pointed plant process; especially : one that is a modified leaf or leaf part

3

: a sharp rigid process on an animal: as

a : spicule

b : a stiff unsegmented fin ray of a fish

c : a pointed prominence on a bone

— spined \ˈspīnd\ adjective

— spine·like \-ˌlīk\ adjective

Examples of SPINE

1. This X-ray shows her spine.
2. Hedgehogs are covered with spines.
3. They lack the spine to do what needs to be done.

Origin of SPINE

Middle English, thorn, spinal column, from Latin spina; perhaps akin to Latin spica ear of grain

First Known Use: 15th century

Related to SPINE

Synonyms

backbone, chine, spinal column, vertebral column

Related Words

back, spinal cord, vertebra

spine

noun \ˈspīn\   (Medical Dictionary)

Medical Definition of SPINE

1

: spinal column

2

: a pointed prominence or process (as on a bone)