Similar words: improve, improved, improvement, improvise, improving, improvised, improvident, improvisation. Meaning: [ɪm'pruːvə(r)] 
n. 1. someone devoted to the promotion of human welfare and to social reforms 2. a component that is added to something to improve it.
n. 1. someone devoted to the promotion of human welfare and to social reforms 2. a component that is added to something to improve it. 
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31. Some improver play important roles in enhancing the baking quality of the wheat flour.
32. Cetane improver . Makes the engine run better at higher compression settings.
33. The result of the treatment of chlorine fastness improver also varies with the dye structure.
More similar words: improve, improved, improvement, improvise, improving, improvised, improvident, improvisation, proverb, proverbial, book of proverbs, improper, prove, improbity, impromptu, proved, proven, rover, improbably, improbable, approve, reprove, impropriety, approved, disprove, approve of, disapprove, provenance, introvert, extrovert.