n. Any epidemic disease that is highly contagious, infectious, virulent and devastating.
the GNU version of the Collaborative International Dictionary of English
n. Specifically, the disease known as the plague; hence, any contagious or infectious epidemic disease that is virulent and devastating.
n. Fig.: That which is pestilent, noxious, or pernicious to the moral character of great numbers.
The Century Dictionary and Cyclopedia
n. The disease called the plague or pest; also, any epidemic malignant disease.
n. That which is pestilential or pestiferous; that which produces or tends to produce malignant disease.
n. That which is morally pestilent; that which is mischievous, noxious, or malignant in any respect.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a serious (sometimes fatal) infection of rodents caused by Yersinia pestis and accidentally transmitted to humans by the bite of a flea that has bitten an infected animal
n. a pernicious and malign influence that is hard to get rid of
n. any epidemic disease with a high death rate
Word Usage
"So the Lord ... sent an angel unto Jerusalem to destroy it -- The infliction only of the pestilence is here noticed, without any account of its duration or its ravages, while a minute description is given of the visible appearance and menacing attitude of the destroying angel."