- communicable by infection, as from one person to another or from one part of the body to another: infectious diseases.
- causing or communicating infection.
- tending to spread from one to another: infectious laughter.
- Law. capable of contaminating with illegality; exposing to seizure or forfeiture.
- Obsolete. diseased.
Origin of infectious
SynonymsSee more synonyms for infectious on Thesaurus.com
1. See contagious.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for non-infectious
Consequently, lymphangitis may be considered as infectious and non-infectious.
Into this laudable and non-infectious state these two persons present come now to be joined and quarantined.A Book of Burlesques
H. L. Mencken
Therefore, one might well classify affections of the feet as infectious and non-infectious.
In the class of non-infectious affections one may consider conditions such as laminitis, strain and fractures.
Such cases were of the non-infectious type and recovery was possible within three or four weeks.
- (of a disease) capable of being transmittedCompare contagious
- (of a disease) caused by microorganisms, such as bacteria, viruses, or protozoa
- causing or transmitting infection
- tending or apt to spread, as from one person to anotherinfectious mirth
- international law
- tainting or capable of tainting with illegality
- rendering liable to seizure or forfeiture
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for non-infectious
Online Etymology Dictionary, © 2010 Douglas Harper
- Capable of causing infection.
- Caused by or capable of being transmitted by infection.
- Caused by a pathogenic microorganism or agent.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- Capable of causing infection. See Note at contagious.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.