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90% of the time, speakers of English use just 7,500 words in speech and writing.These words appear in red, and are graded with stars. One-star words are frequent, two-star words are morefrequent, and three-star words are the most frequent.

adjective British English pronunciation: broad-spectrum
  1. able to be used against a wide range of different illnesses or insects

    broad-spectrum antibiotics/pesticides

This is the British English definition of broad-spectrum. View American English definition of broad-spectrum