thoracico-|θɒˈræsɪkəʊ|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.1870Rolleston Anim. Life 30 The internal aspect of the *thoracico-abdominal cavity.1891Cent.Dict., *Thoracicacromial.1895Funk's Standard Dict., Thoracicoacromial.1891Cent.Dict., *Thoracicohumeral.1899Syd. Soc.Lex., *Thoracico-lumbar, pertaining to the thoracic and lumbar regions.
thoracico-/θəˈrasɪkəʊ/combining form of thoracic: see -o-.