combining form of THORACIC a., used to form adjs. in sense ‘pertaining to the thorax and (some other part),’ as thoracico-abdominal (also thoracicabdominal: see also THORACIC 5), thoracicoacromial (also thoracicacromial), thoracico-humeral, thoracico-lumbar.

1

1870.  Rolleston, Anim. Life, 30. The internal aspect of the *thoracico-abdominal cavity.

2

1891.  Cent. Dict., *Thoracicoacromial.

3

1895.  Funk’s Standard Dict., Thoracicoacromial.

4

1891.  Cent. Dict., *Thoracicohumeral.

5

1899.  Syd. Soc. Lex., *Thoracico-lumbar, pertaining to the thoracic and lumbar regions.

6