Medical Dictionary

infectivity

noun in·fec·tiv·i·ty \ ˌin-ˌfek-ˈtiv-ət-ē \

medical Definition of infectivity

plural infectivities
:the quality of being infective :the ability to produce infection; specifically :a tendency to spread rapidly from host to host — compare virulence b

Seen and Heard

What made you want to look up infectivity? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

pleasing or sweet sound

Get Word of the Day daily email!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!