"infectious, communicable by infection," late 14c., from Latin infectivus, from infect-, past participle stem of inficere "to tinge, dye; stain, spoil" (see infect).
infective agents
a carrier remains infective without himself showing signs of the disease
viruses and other infective agents
infeasibility
infeasible
infect
infection
infectious
infective
infecund
infelicitous
infelicity
infer
inference
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