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Capable of producing infection; infectious.

in·fec′tive·ness, in′fec·tiv′i·ty n.


1. (Pathology) capable of causing infection
2. a less common word for infectious
inˈfectively adv
inˈfectiveness, ˌinfecˈtivity n


(ɪnˈfɛk ʃəs)

1. communicable by infection, as from one person to another or from one part of the body to another.
2. causing or communicating infection.
3. tending to spread quickly and generally: infectious laughter.
4. Obs. diseased.
in•fec′tious•ly, adv.
in•fec′tious•ness, n.
syn: See contagious.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.infective - able to cause disease; "infective agents"; "pathogenic bacteria"
unhealthful - detrimental to good health; "unhealthful air pollution"; "unhealthful conditions in old apartments with peeling lead-based paint"
2.infective - caused by infection or capable of causing infection; "viruses and other infective agents"; "a carrier remains infective without himself showing signs of the disease"
infected, septic - containing or resulting from disease-causing organisms; "a septic sore throat"; "a septic environment"; "septic sewage"


[ɪnˈfektɪv] ADJ [disease, agent] → infeccioso


adj (Med) agentinfektiös; infective diseaseInfektionskrankheit f
References in periodicals archive ?
This suggests that when infectiveness of the index case is low and exposure period is short, disease will not propagate through the population occupying that particular indoor enclosure even for low supply flow rate; therefore, increase of air supply flow rate has negligible improvement in protective effectiveness.
sativa Chemicals Percentage of Percentage of Infectiveness infected infected reduction (%) macrophages by macrophages by non-treated treated promastigotes promastigotes MA 79.
Michael Bluhm, a journalist at The Daily Star, says that the New York Times article was published to bring attention to the infectiveness of US sanctions' against Iran, stressing that "US companies and corporations are getting around the law through foreign [partners].