noun🔗ShareA medicine which preserves or defends against disease; a preventive."The dentist recommended a fluoride treatment as a prophylactic against cavities. "medicinediseaseChat with AIVocabulary GamePractice Reading
noun🔗ShareAny device or mechanism intended to prevent harmful consequences."The securities laws are a prophylactic against stock fraud."medicinedeviceChat with AIVocabulary GamePractice Reading
adjective🔗ShareServing to prevent or protect against an undesired effect, especially disease."Washing your hands frequently is a good prophylactic measure against catching a cold. "medicinediseaseChat with AIVocabulary GamePractice Reading
