transcription, транскрипция: [ bækboʊn ]
( backbones)
1.
Your backbone is the column of small linked bones down the middle of your back.
= spine
N-COUNT
2.
The backbone of an organization or system is the part of it that gives it its main strength.
The small business people of Britain are the economic backbone of the nation.
N-SING : usu with poss