ISEE/SSAT Vocabulary Builder›Words›A›antibiotic
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antibiotic
a medicine that kills or stops the growth of bacteria
Synonyms
- antibacterial
antibiotic in a sentence
The doctor prescribed an antibiotic to clear up her sinus infection.
Farmers sometimes add a low dose of antibiotic to animal feed to prevent infections in crowded barns.
Where it comes from
From Greek anti- 'against' + bios 'life'
Memory hook
ANTI (against) + BIOTIC (living things) — a drug that works against living germs.
Word parts
- anti — against, opposite
antibiotic: anti- (against) + biotic (living, from bios 'life') - bio — life
antibiotic: anti- (against) + bio (life) + -tic (relating to)
Read it in context
- Signal in the Storm Narrative
Practice antibiotic in the app