Толковый словарь английского языка Oxford English Reference - pure

adj. 1 unmixed, unadulterated (pure white; pure alcohol). 2 of unmixed origin or descent (pure-blooded). 3 chaste. 4 morally or sexually undefiled; not corrupt. 5 guiltless. 6 sincere. 7 mere, simple, nothing but, sheer (it was pure malice). 8 (of a sound) not discordant, perfectly in tune. 9 (of a subject of study) dealing with abstract concepts and not practical application. 10 a (of a vowel) not joined with another in a diphthong. b (of a consonant) not accompanied by another. Phrases and idioms pure science a science depending on deductions from demonstrated truths (e.g. mathematics or logic), or one studied without practical applications. Derivatives pureness n. Etymology: ME f. OF pur pure f. L purus