(n) :
(countable) The series of vertebrae, separated by disks, that encloses and protects the spinal cord, and runs down the middle of the back in vertebrate animals.
(n) :
(countable, figuratively) Any fundamental support, structure, or infrastructure.
(n) :
(uncountable, figuratively) Courage, fortitude, or strength.
(n) :
(countable) The series of vertebrae, separated by disks, that encloses and protects the spinal cord, and runs down the middle of the back in vertebrate animals.
(n) :
(countable, figuratively) Any fundamental support, structure, or infrastructure.
(n) :
(uncountable, figuratively) Courage, fortitude, or strength.