Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Drugs, medicinescondomcon‧dom /ˈkɒndəm $ ˈkɑːn-, ˈkʌn-/ ●○○ noun [countable] SYa thin rubber bag that a man wears over his penis (=sex organ) during sex, to prevent a woman having a baby or to protect against disease ldoceonline.com