backbone
noun /ˈbækbəʊn/
/ˈbækbəʊn/
- enlarge image[countable] the row of small bones that are connected together down the middle of the back synonym spineTopics Bodyb1
- [singular] the most important part of a system, an organization, etc. that gives it support and strength
- Agriculture forms the backbone of the rural economy.
- [uncountable] the strength of character that you need to do something difficult
- He doesn't have the backbone to face the truth.