BACKBONE
An Illustrated Encyclopaedic Medical Dictionary · 1891 · p. 3
n. Ba*k’bo’n. A common term for the vertebral column, except the cervical portion.
Bu kavram başka kaynaklarda da geçiyor
Appleton's Medical Dictionary (1913)
A Dictionary of Aviation (1911)
The American Dictionary and Cyclopedia (1910)
Chamber's Etymological of the English Language (1895)
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