'Coughing' definitions:

Definition of 'coughing'

(from WordNet)
noun
A sudden noisy expulsion of air from the lungs that clears the air passages; a common symptom of upper respiratory infection or bronchitis or pneumonia or tuberculosis [syn: cough, coughing]

Definition of 'Coughing'

From: GCIDE
  • Cough \Cough\ (k?f), v. i. [imp. & p. p. Coughed (k?ft); p. pr. & vb. n. Coughing.] [Cf. D. kuchen, MHG. k?chen to breathe, G. keuchen to pant, and E. chincough, the first part of which is prob. akin to cough; cf. also E. choke.] To expel air, or obstructing or irritating matter, from the lungs or air passages, in a noisy and violent manner. [1913 Webster]