|a mild viral infection of the upper respiratory tract, characterized by sneezing, coughing, watery eyes, nasal congestion, sore throat, etc|
|the offspring of a zebra and a donkey.|
|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
common cold n.
|common cold (kŏm'ən) Pronunciation Key
A respiratory infection caused by any of several viruses, such as adenovirus or rhinovirus, in which the mucous membranes of the mouth, nose, and throat become inflamed. Common-cold symptoms include fever, nasal discharge, sneezing, and coughing.