in·​fec·​tive | \ in-ˈfek-tiv How to pronounce infective (audio) \

Definition of infective

1 : producing or capable of producing infection
2 : affecting others : infectious

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Other Words from infective

infectivity \ (ˌ)in-​ˌfek-​ˈti-​və-​tē How to pronounce infectivity (audio) \ noun

Examples of infective in a Sentence

Recent Examples on the Web

Cidara Therapeutics is offering $120 million in stock, the anti-infective drug developer said Monday. Bradley J. Fikes,, "Cidara offers $120 million in stock to advance anti-infective drugs," 21 May 2018 The list of diseases thought to be caused by infective organisms is growing by the day. Sandy Bauers,, "How high-tech genomics - and simple aspirin - could make your joint replacement better," 17 May 2018 That’s how former Turing Pharmaceuticals CEO Martin Shkreli was able to hike the price of a 60-year-old anti-infective drug, Daraprim, from $13.50 to $750 per pill. Washington Post, "FDA names drugmakers accused of blocking cheaper generics," 17 May 2018 For preterm and sick babies, human milk — fortified with anti-infective and anti-inflammatory nutrients not found in formula — is an elixir. Crocker Stephenson, Milwaukee Journal Sentinel, "Better Angels: After seeing homeless woman nurse baby, attorney donates her breastmilk to save lives," 11 Dec. 2017 Infected rodents don't last long in the presence of a cat and their consumption ultimately results in a bowel movement that contains thousands of microscopic oocysts, the parasite's infective stage, thus completing the cycle. Author: Rick Sinnott, Alaska Dispatch News, "Do feral cats have special needs, or is their plight all in our heads?," 21 June 2017 In one now-infamous case, Turing Pharmaceuticals AG, then led by Martin Shkreli, bought the rights to sell a decades-old anti-infective drug called Daraprim and raised the price to $750 a pill from $13.50. Anna Edney,, "Trump Administration Prepares a Drug Pricing Executive Order, Sources Say," 15 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'infective.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of infective

14th century, in the meaning defined at sense 1

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The first known use of infective was in the 14th century

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More Definitions for infective


in·​fec·​tive | \ in-ˈfek-tiv How to pronounce infective (audio) \

Medical Definition of infective

: producing or capable of producing infection : infectious

More from Merriam-Webster on infective

Rhyming Dictionary: Words that rhyme with infective

Britannica English: Translation of infective for Arabic Speakers

Comments on infective

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


grandiloquent, ostentatious, or bombastic

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