acid

acid
noun
  1. a substance with particular chemical properties including turning litmus red, neutralizing alkalis, and dissolving some metals; typically, a corrosive or sour-tasting liquid of this kind[mass noun]
    酸。 常与 alkali 或 base 相对
    ■[mass noun](figurative)bitter or cutting remarks or tone of voice
    (喻)尖刻（或尖酸）的言语（或语调）
    she was unable to quell the acid in her voice.
    她无法压制住声音里的尖酸口吻。
    ■[mass noun](informal)the drug LSD
    (非正式)迷幻药LSD （麦角二乙胺）
    ■(Chemistry)a molecule or other species which can donate a proton or accept an electron pair in reactions
    (化)质子供体，电子对受体
  2. Acids are compounds which release hydrogen ions (H+) when dissolved in water. Any solution with a pH of less than 7 is acidic, strong acids such as sulphuric or hydrochloric acid having a pH as low as 1 or 2. Most organic acids (carboxylic or fatty acids) contain the carboxyl group -COOH
adjective
  1. containing acid or having the properties of an acid; having a pH of less than 7
    含酸的，酸性的，pH值小于7的。 常与 alkaline 或 basic 相对
    poor, acid soils.
    贫瘠的酸性土壤。
    ■(Geology)(of rock, especially lava) containing a relatively high proportion of silica
    (地质)（岩石，尤指熔岩）含相当量硅石的
    ■(Metallurgy)relating to or denoting steel-making processes involving silica-rich refractories and slags
    (冶)（与炼钢过程中涉及硅石含量高的难熔物及炉渣）酸性（有关）的
  2. sharp-tasting or sour
    味道刺激的，酸味的
    acid fruit.
    酸的水果。
    ■(of a person's remarks or tone) bitter or cutting
    （人的话语或口吻）尖刻的，尖酸的
    she was stung into acid defiance.
    她被刺痛了，用尖刻的语言进行了反击。
    ■(of a colour) strikingly intense or bright
    （颜色）刺目的，非常强烈、鲜亮的
    an acid green.
    耀眼的绿色。
常用词组
put the acid on
  1. (Austral./NZ informal)seek to extract a loan or favour from (someone). acid test, referring to possible resistance (because gold resists nitric acid)
    (澳／新西兰，非正式)设法从（某人处）获得贷款或好处
语源
  1. acid from acid test, referring to possible resistance (because gold resists nitric acid)
派生
acidy
adjective
语源
  1. early 17th cent. (in the sense 'sour-tasting'): from Latin acidus, from acere 'be sour'
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