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WordReference Random House Learner's Dictionary of American English © 2024back•bone /ˈbækˌboʊn/USA pronunciation n. - Anatomy[countable] the spinal column;
spine. - [uncountable] strength of character.
- [countable] the main strength or support of something:The small farmer was the backbone of the republic.
WordReference Random House Unabridged Dictionary of American English © 2024back•bone (bak′bōn′),USA pronunciation n. - Anatomythe spinal column;
spine. - strength of character;
resolution. - something resembling a backbone in appearance, position, or function.
- Printing[Bookbinding.]a back or bound edge of a book;
spine. - Nautical, Naval Termsa rope running along the middle of an awning, as a reinforcement and as an object to which a supporting bridle or crowfoot may be attached.
- Naval Termsthe central fore-and-aft assembly of the keel and keelson, giving longitudinal strength to the bottom of a vessel.
- Middle English bacbon. See back1, bone1 1250–1300
back′boned′, adj. back′bone′less, adj. - 2.See corresponding entry in Unabridged firmness, decision, fortitude.
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