The most popular online dictionary and thesaurus for learners of English
penicillin
noun [U] /ˌpen.əˈsɪl.ɪn/ specializedDefinition
› a type of antibiotic (= a medicine that kills bacteria)Specific medicines and drugsSpecific types of drug
(Definition of penicillin noun from the Cambridge Advanced Learner's Dictionary & Thesaurus
© Cambridge University Press)
Focus on the pronunciation of penicillin
Browse related topics
You are looking at an entry to do with Medicines & drugs, but you might be interested in these topics from the Medicine topic area:
- Alternative & traditional therapies
- Dentistry
- Diets & dieting
- Eyesight, glasses & lenses
- Health in general
- Medical & surgical equipment
- Medical dressings, supports & devices
- Medical examination
- Medical places & organizations
- Medical studies & the people who study them
- Medical treatment: doctors & health workers generally
- Medical treatment: general words
- Medical treatment: people who receive medical treatment
- Medical treatment: surgery
- Medical treatment: symptoms & diagnosis of medical problems
- Medical treatment: treating & caring for people
- Medicine in different forms
- Medicines & drugs: administering drugs & medicines
- Medicines & drugs: preventing infection
- Obstetrics: birth
- Obstetrics: contraception
- Obstetrics: pregnancy
- Obstetrics: processes & stages connected with sexual reproduction
- Physiotherapy, massage & osteopathy
- Resuscitation
Browse the Thesaurus
SMART Thesaurus: Medicines & drugs
Synonyms and related words:
- acetaminophen noun
- antacid noun
- anti-inflammatory adjective
- anti-inflammatory noun
- antidepressant noun
- antiviral noun
- balsam noun
- calendula noun
- cod liver oil noun
- cough medicine noun
- diuretic noun
- ear drops noun
- echinacea noun
- emollient adjective
- epidural noun
- Epsom salts noun
- ginseng noun
- Milk of Magnesia noun
- purgative noun
- thalidomide noun
Word of the Day
Blog
Read our blog about how the English language behaves.
New Words
Find words and meanings that have just started to be used in English, and let us know what you think of them.
