n.
The expectoration of blood or of blood-streaked sputum from the larynx, trachea, bronchi, or lungs.
[HEMO- + Greek ptusis, a spitting (from ptuein, to spit).]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
