• WordNet 3.6
    • adj prophylactic preventing or contributing to the prevention of disease "preventive medicine","vaccines are prophylactic","a prophylactic drug"
    • adj prophylactic warding off "the swastika...a very ancient prophylactic symbol occurring among all peoples"- Victor Schultze"
    • adj prophylactic capable of preventing conception or impregnation "contraceptive devices and medications"
    • n prophylactic contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse
    • n prophylactic remedy that prevents or slows the course of an illness or disease "the doctor recommended several preventatives"
    • ***
Webster's Revised Unabridged Dictionary
    • n Prophylactic (Med) A medicine which preserves or defends against disease; a preventive.
    • a Prophylactic (Med) Defending or preserving from disease; preventive.
    • ***
Century Dictionary and Cyclopedia
    • prophylactic In medicine, preventive; defending from disease: as, prophylactic doses of quinine.
    • n prophylactic Anything, as a medicine, which defends against disease; a preventive of disease.
    • n prophylactic Same as prophylaxis.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Prophylactic prof-i-lak′tik guarding against: defending from disease
    • n Prophylactic a medicine which wards off disease
    • ***


  • Walter Lippmann
    “The study of error is not only in the highest degree prophylactic, but it serves as a stimulating introduction to the study of truth.”


Webster's Revised Unabridged Dictionary
Gr. , fr. to guard against; before + to guard: cf. F. prophylactique,


In literature:

"Hydriatic treatment of Scarlet Fever in its Different Forms" by Charles Munde
Coal smoke was then considered extremely unhealthy, while wood smoke was thought to be a prophylactic against consumption.
"In Convent Walls" by Emily Sarah Holt
Prophylactic treatment is clearly indicated.
"The Battle with the Slum" by Jacob A. Riis
The employment of aromatics as prophylactics is not less beneficial in children than in adults.
"North American Medical and Surgical Journal, Vol. 2, No. 3, July, 1826" by Various
A broad program against tuberculosis was begun in the 1960s that included general prophylactic measures and vaccine injections.
"Area Handbook for Albania" by Eugene K. Keefe
Its prophylactic or preventive tendencies are much more valuable.
"Forty Years in the Wilderness of Pills and Powders" by William A. Alcott
Certain physicians employed a prophylactic remedy made up of very many substances.
"Catholic Churchmen in Science" by James J. Walsh
So modern prophylactic measures are directed primarily against the rat and fleas.
"Handbook of Medical Entomology" by William Albert Riley
Cold infusion of tar was used in our colonies as a prophylactic against the Small Pox.
"Epidemics Examined and Explained: or, Living Germs Proved by Analogy to be a Source of Disease" by John Grove
It is also of great use as a prophylactic.
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 9" by Various

In news:

More on Judge's Prophylactic Against the "Contraceptive" Mandate.
BiO2 Medical Granted CE Mark for IVC Filter With a Prophylactic Use Indication.
BiO2 Medical Granted CE Mark for the Angel Catheter, the First IVC Filter with a Prophylactic Use Indication.
Linux-Powered Prophylactic Protects Vista PC.
When symptomatic UTI was reported, patients who took methenamine were 76% less likely to have a UTI than patients who took placebo or had no prophylactic treatment.
It was also determined that methenamine has no prophylactic effect in patients with neuropathic bladder.
Background The profession of dental hygiene had its modern beginnings in the early 1900s when Dr Alfred C Fones determined that properly trained individuals could provide oral health education and prophylactic care to patients (Motley 1983).
Proton pump inhibitors may be overused among non-ICU inpatients without risk factors for UGIB.3- 5 Moreover, PPIs prescribed for prophylactic purposes to inpatients may be continued unnecessarily at the time of hospital discharge.3- 6.
"Prophylactic sunbathing defends these bugs against pathogens that they encounter in their shelters," Gerhard Gries, a biology professor at Simon Fraser University, said in a statement.
His current research is examining the effect of prophylactic bracing and taping of the knee on muscle firing patterns and balance in lower extremity (calf) muscle.
Six men — including some who work for a company that exports condoms — were arrested after hundreds of boxes of prophylactics were found stashed in a warehouse and a home.

In science:

Design and evaluation of prophylactic interventions using infectious disease incidence data from close contract groups. J.
A resampling-based test to detect person-to-person transmission of infectious disease
Prophylactic implantation of a defibrillator in patients with myocardial infarction and reduced ejection fraction.
Sequential tests and estimates after overrunning based on $p$-value combination