ISEE/SSAT Vocabulary BuilderWordsAantibiotic
ISEE/SSATeasy
antibiotic
Meaning: a medicine that kills or stops the growth of bacteria
antibiotic in a sentence
How antibiotic is used in real sentences:
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.
“Following a Coast Guard medic's directions, Mara cleaned it and used the emergency syringe to inject an antibiotic.”
— from the passage Signal in the Storm
Synonyms for antibiotic
Other words for antibiotic — antibacterial — carry the same meaning.
- antibacterial
Where it comes from
From Greek anti- 'against' + bios 'life'
Word parts
- anti — against, opposite
antibiotic: anti- (against) + biotic (living, from bios 'life') - bio — life
antibiotic: anti- (against) + bio (life) + -tic (relating to)
Memory hook
ANTI (against) + BIOTIC (living things) — a drug that works against living germs.
Practice antibiotic in the app