prophylactic

[ proh-fuh-lak-tik, prof-uh- ]
/ ˌproʊ fəˈlæk tɪk, ˌprɒf ə- /

adjective

defending or protecting from disease or infection, as a drug.
preventive or protective.

noun

Medicine/Medical. a prophylactic medicine or measure.
a preventive.
a device, usually a rubber sheath, used to prevent conception or venereal infection; condom.

Origin of prophylactic

1565–75; < Greek prophylaktikós of guarding, equivalent to prophylak- (base of prophylássein to guard beforehand) + -tikos -tic. See prophylaxis

OTHER WORDS FROM prophylactic

pro·phy·lac·ti·cal·ly, adverb

Example sentences from the Web for prophylactic

British Dictionary definitions for prophylactic

prophylactic
/ (ˌprɒfɪˈlæktɪk) /

adjective

protecting from or preventing disease
protective or preventive

noun

a prophylactic drug or device, esp a condom

Word Origin for prophylactic

C16: via French from Greek prophulaktikos, from prophulassein to guard by taking advance measures, from pro- ² + phulax a guard

Medical definitions for prophylactic

prophylactic
[ prō′fə-lăktĭk, prŏf′ə- ]

n.

A prophylactic agent, device, or measure, such as a vaccine or drug.
A contraceptive device, especially a condom.

adj.

Acting to defend against or prevent something, especially disease; protective.