1

prophylactic

adjective pro·phy·lac·tic \ ˌprō-fə-ˈlak-tik also ˌprä- \
Updated on: 15 Nov 2017

Definition of prophylactic

1 : guarding from or preventing the spread or occurrence of disease or infection
2 : tending to prevent or ward off : preventive

prophylactically

play \ˌprō-fə-ˈlak-ti-k(ə-)lē also ˌprä-\ adverb

Examples of prophylactic in a Sentence

  1. the prophylactic use of antibiotics

  2. the many prophylactic measures that city officials could have taken to reduce the scope of the disaster

Recent Examples of prophylactic from the Web

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

Origin and Etymology of prophylactic

Greek prophylaktikos, from prophylassein to be on guard, from pro- before + phylassein to guard, from phylak-, phylax guard

2

prophylactic

noun

Definition of prophylactic

: something prophylactic; especially : a device and especially a condom for preventing venereal infection or conception

Recent Examples of prophylactic from the Web

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

First Known Use of prophylactic

circa 1641


PROPHYLACTIC Defined for English Language Learners

prophylactic

adjective

Definition of prophylactic for English Language Learners

  • medical : designed to prevent disease


prophylactic

noun

Definition of prophylactic for English Language Learners

  • medical : something that is designed to prevent the spread of disease or infection


Medical Dictionary

1

prophylactic

adjective pro·phy·lac·tic \ ˌprō-fə-ˈlak-tik also ˌpräf-ə- \

medical Definition of prophylactic

1 : guarding from or preventing the spread or occurrence of disease or infection
  • prophylactic therapy
2 : tending to prevent or ward off : preventive

prophylactically

play \-ti-k(ə-)lē\ adverb

2

prophylactic

noun

medical Definition of prophylactic

: something (as a medicinal preparation) that is prophylactic; especially : a device and especially a condom for preventing venereal infection or conception

Law Dictionary

prophylactic

adjective pro·phy·lac·tic \ ˌprō-fə-ˈlak-tik, ˌprä- \

legal Definition of prophylactic

: designed or tending to prevent harm or wrong
  • a prophylactic rule against profiting from inside information


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