atelectasis vs. pneumonia

atelectasis

[ at-l-ek-tuh-sis ]show ipa

noun

1. incomplete expansion of the lungs at birth, as from lack of breathing force.
2. collapse of the lungs, as from bronchial obstruction.

pneumonia

[ noo-mohn-yuh, -moh-nee-uh, nyoo- ]show ipa

noun

1. inflammation of the lungs with congestion.
2. an acute disease of the lungs, caused by the bacterium Streptococcus pneumoniae and characterized by fever, a cough with blood-tinged phlegm, and difficult breathing.