prophylactic

• 指为预防疾病或防止不愉快事情发生而采取的。

Relating to measures taken to prevent disease or protect against something undesirable.

1. Preventing diseaseC1formalmedical

   Intended to prevent or protect against disease.

   预防性的

   • The doctor recommended a prophylactic treatment to prevent infection.
   • Prophylactic measures include vaccination and regular hand washing.
   • She took prophylactic antibiotics before the surgery.

   同义词preventativepreventiveprotective

2. Preventing pregnancyC1formalmedical

   Capable of preventing conception or impregnation.

   避孕的

   • Condoms are a common prophylactic device.
   • The clinic provides information on various prophylactic methods.
   • Prophylactic measures for birth control are widely available.

   同义词birth controlcontraceptive

   反义词fertile

3. Warding off harmC2formal

   Serving to protect or guard against potential harm or danger.

   预防伤害的

   • The government implemented prophylactic policies to avert an economic crisis.
   • He took prophylactic steps to secure his online accounts.
   • Prophylactic diplomacy can prevent conflicts before they escalate.

   同义词defensiveprecautionarypreventativepreventiveprotective

   反义词dangerousdetrimentalharmfulinjuriousnoxiouspernicious

• 名词，指预防疾病或防止感染的措施或药物；也指性交时使用的避孕用具，即安全套。

A noun referring to a preventive measure or remedy that guards against disease, or a contraceptive device worn during intercourse.

1. Preventive remedyC1formalmedical

   A treatment or measure taken to prevent or slow the progression of a disease or illness.

   预防性措施

   • The doctor prescribed a prophylactic to reduce the risk of infection.
   • Taking vitamins can act as a prophylactic against certain deficiencies.
   • Malaria prophylactics are recommended for travelers to tropical regions.

   同义词precautionpreventativepreventiveprophylaxissafeguard

2. Contraceptive deviceB2formalmedical

   A barrier device, typically made of thin rubber or latex, worn on the penis during sexual intercourse to prevent pregnancy and reduce the risk of sexually transmitted infections.

   避孕套

   • He always uses a prophylactic to protect against STIs.
   • Prophylactics are widely available at pharmacies and clinics.
   • The use of a prophylactic is an effective method of birth control.

   同义词condomjohnnyprophylactic deviceprotectorrubbersafety