| 释义 |
broad-spectrum
broad-spec·trum (brôd′spĕk′trəm)adj. Widely applicable or effective: a broad-spectrum antibiotic.broad-spectrum n (Pharmacology) (modifier) effective against a wide variety of diseases or microorganisms: a broad-spectrum antibiotic. broad′-spec′trum
adj. 1. (of an antibiotic) effective against a wide range of organisms. 2. having a wide range of uses. [1950–55] Thesaurusbroad-spectrumadjectiveCovering a wide scope:all-around, all-inclusive, all-round, broad, comprehensive, expansive, extended, extensive, far-ranging, far-reaching, general, global, inclusive, large, overall, sweeping, wide-ranging, wide-reaching, widespread.EncyclopediaSeebroad-spectrum antibioticbroad-spectrum
spectrum [spek´trum] (L.) 1. the series of images resulting from the refraction of electromagnetic radiation (e.g., light, x-rays) and their arrangement according to frequency or wavelength.2. range of activity, as of an antibiotic, or of manifestations, as of a disease. adj., adj spec´tral.absorption spectrum one obtained by passing radiation with a continuous spectrum through a selectively absorbing medium.broad-spectrum effective against a wide range of microorganisms.visible spectrum that portion of the range of wavelengths of electromagnetic vibrations (from 770 to 390 nanometers) which is capable of stimulating specialized sense organs and is perceptible as light.broad-spectrum (brôd′spĕk′trəm)adj. Widely applicable or effective: a broad-spectrum antibiotic.broad-spectrum adjective Referring to any agent, usually understood to be an antibiotic, which is effective against a wide range of microorganisms.broad-spectrum adjective Referring to any agent, usually understood to be an antibiotic, which is effective against a wide range of microorganismsbroad-spectrum A term most commonly applied to antibiotics implying that the drug is effective over a wide range of organisms. Widely applicable or effective. Prolonged use of broad-spectrum antibiotics, such as AMPICILLIN or the CEPHALOSPORINS, will usually destroy most of the normal organisms of the bowel and these will tend to be replaced by resistant species. It is therefore considered better practice to use narrow-spectrum drugs so long as these are known to be effective against the organism concerned.broad-spectrum
Synonyms for broad-spectrumadj covering a wide scopeSynonyms- all-around
- all-inclusive
- all-round
- broad
- comprehensive
- expansive
- extended
- extensive
- far-ranging
- far-reaching
- general
- global
- inclusive
- large
- overall
- sweeping
- wide-ranging
- wide-reaching
- widespread
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