Meaning of “harmful” in the English Dictionary

"harmful" in British English

See all translations


uk /ˈhɑːm.fəl/ us /ˈhɑːrm.fəl/

B2 causing harm:

This group of chemicals is known to be harmful to people with asthma.

More examples

  • It's important to protect your skin from the harmful effects of the sun.
  • Prolonged use of the drug is known to have harmful side-effects.
  • The programme makers disagree that seeing violence on television has a harmful effect on children.
  • Food must be heated to a high temperature to kill harmful bacteria.
  • We've signed a treaty with neighbouring states to limit emissions of harmful gases.
adverb uk /ˈhɑːm.fəl.i/ us /ˈhɑːrm.fəl.i/
noun [ U ] uk /ˈhɑːm.fəl.nəs/ us /ˈhɑːrm.fəl.nəs/

(Definition of “harmful” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)