Anti-infective – Definition & Meaning

Anti-infective is a term that is commonly used in the field of medicine. It refers to any substance or medication that is used to treat or prevent an infection caused by bacteria, viruses, fungi, or parasites. Anti-infective drugs are an essential part of modern medicine, and they have saved countless lives over the years.


The term anti-infective refers to any substance that is used to prevent or treat an infection. This can include antibiotics, antivirals, antifungals, and antiparasitic drugs. These substances work by either killing the infectious agent or by preventing its growth and replication.


The term anti-infective has its roots in the Latin word “infectus,” which means “infected.” The prefix “anti” means “against,” so the term anti-infective literally means “against infection.”

Meaning in different dictionaries

The meaning of anti-infective is consistent across various dictionaries. The Merriam-Webster dictionary defines it as “a substance that is used to prevent or treat an infection.” The Oxford English Dictionary defines it as “a drug or other substance that is used to prevent or cure an infectious disease.”


Anti-infective drugs are often associated with the treatment of bacterial infections, but they can also be used to treat viral, fungal, and parasitic infections. Some of the most common anti-infective drugs include penicillin, amoxicillin, ciprofloxacin, acyclovir, fluconazole, and metronidazole.


There are several synonyms for anti-infective, including antimicrobial, antibiotic, antiviral, antifungal, and antiparasitic.


The antonyms of anti-infective are not applicable since the term is specific to preventing or treating infections. However, some may consider the opposite to be “pro-infective,” which would be a substance that promotes or causes an infection.

The same root words

There are several other terms that have the same root words as anti-infective, including antiseptic, which refers to a substance that is used to prevent the growth of microorganisms on living tissue. Another related term is disinfectant, which is a substance that is used to kill microorganisms on surfaces.

Example Sentences

  • The doctor prescribed an anti-infective drug to treat the patient’s bacterial infection.
  • The hospital uses a variety of anti-infective agents to prevent the spread of infections.
  • The development of new anti-infective drugs is critical in the fight against antibiotic-resistant bacteria.
  • The use of antiviral drugs has been shown to be effective in treating certain types of viral infections.
  • The pharmacist recommended an antifungal cream to treat the patient’s athlete’s foot.
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