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Medical Prefixes
Anti-
Commonly used in terms related to immune response or medication action.
Literal Meaning
Against, opposite
Actual Meaning
When you see "anti-" at the start of a word, it means something works AGAINST something else. Like antibiotics fight against bacteria.
Examples in Context

Antibiotics are anti-bacterial agents that fight infections.

Helpful Tips
  • 1Think of 'anti' as a defender in medicine.
  • 2Remember it as opposing harmful agents or conditions.
Phrase Thesaurus
Similar words and synonyms for this phrase
contra-
counter-
opposing
Related Phrases
Click to explore related phrases in our collection
Antibiotic
Anti-inflammatory
Antihistamine
Antidepressant