in·fec·tious /ɪnˈfɛkʃəs/ 形容詞
1. Having qualities that may infect; communicable or caused by infection; pestilential; epidemic; as, an infectious fever; infectious clothing; infectious water; infectious vices.
Where the infectious pestilence. --Shak.
2. Corrupting, or tending to corrupt or contaminate; vitiating; demoralizing.
It [the court] is necessary for the polishing of manners . . . but it is infectious even to the best morals to live always in it. --Dryden.
3. Law Contaminating with illegality; exposing to seizure and forfeiture.
Contraband articles are said to be of an infectious nature. --Kent.
4. Capable of being easily diffused or spread; sympathetic; readily communicated; as, infectious mirth.
The laughter was so genuine as to be infectious. --W. Black.
Syn: -- See Contagious.
adj 1: caused by infection or capable of causing infection;
"viruses and other infective agents"; "a carrier
remains infective without himself showing signs of the
disease" [syn: infective]
2: easily spread; "fear is exceedlingly infectious; children
catch it from their elders"- Bertrand Russell [ant: noninfectious]
3: of or relating to infection; "infectious hospital";