backbone
1 ENTRIES FOUND:
plural
backbones
plural
backbones
Britannica Dictionary definition of BACKBONE
1
[count]
:
the row of connected bones that go down the middle of the back and protect the spinal cord
— called also
spinal column,
spine
—
see picture at human
2
[count]
:
the most important or strongest part of something
-
She is the backbone of the family.
3
[noncount]
:
strength and courage
-
He showed some backbone by refusing to compromise his values.
