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mediums 音标拼音: [m'idiəmz] Medium \ Me" di* um\, n.; pl. L. { Media}, { E}. { Mediums}. [ L. medium the middle, fr. medius middle. See { Mid}, and cf. { Medius}.] 1. That which lies in the middle, or between other things; intervening body or quantity. Hence, specifically: ( a) Middle place or degree; mean. [ 1913 Webster] The just medium . . . lies between pride and abjection. -- L' Estrange. [ 1913 Webster] ( b) ( Math.) See { Mean}. ( c) ( Logic) The mean or middle term of a syllogism; that by which the extremes are brought into connection. [ 1913 Webster] 2. A substance through which an effect is transmitted from one thing to another; as, air is the common medium of sound. Hence: The condition upon which any event or action occurs; necessary means of motion or action; that through or by which anything is accomplished, conveyed, or carried on; specifically, in animal magnetism, spiritualism, etc., a person through whom the action of another being is said to be manifested and transmitted. [ 1913 Webster] Whether any other liquors, being made mediums, cause a diversity of sound from water, it may be tried. -- Bacon. [ 1913 Webster] I must bring together All these extremes; and must remove all mediums. -- Denham. [ 1913 Webster] 3. An average. [ R.] [ 1913 Webster] A medium of six years of war, and six years of peace. -- Burke. [ 1913 Webster] 4. A trade name for printing and writing paper of certain sizes. See { Paper}. [ 1913 Webster] 5. ( Paint.) The liquid vehicle with which dry colors are ground and prepared for application. [ 1913 Webster] 6. ( Microbiology) A source of nutrients in which a microorganism is placed to permit its growth, cause it to produce substances, or observe its activity under defined conditions; also called { culture medium} or { growth medium}. The medium is usually a solution of nutrients in water, or a similar solution solidified with gelatin or agar. [ PJC] 7. A means of transmission of news, advertising, or other messages from an information source to the public, also called a { news medium}, such as a newspaper or radio; used mostly in the plural form, i. e. { news media} or { media}. See 1st { media}[ 2]. [ PJC] { Circulating medium}, a current medium of exchange, whether coin, bank notes, or government notes. { Ethereal medium} ( Physics), the ether. { Medium of exchange}, that which is used for effecting an exchange of commodities -- money or current representatives of money. [ 1913 Webster]
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