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Dictionary definition for: Infectious

1. (s) caused by infection or capable of causing infection; "viruses and other infective agents" "a carrier remains infective without himself showing signs of the disease"

2. (a) easily spread; "fear is exceedlingly infectious; children catch it from their elders"- Bertrand Russell

3. (a) of or relating to infection; "infectious hospital" "infectious disease"

WordNet 2.1 Copyright Princeton University. All rights reserved.