a) Having a pH less than 7, or being sour, or having the strength to neutralize alkalis, or turning a litmus paper red.

an acidic solution

b) Containing a high percentage of silica; opposed to basic.
Syn: acid

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  • Acidic — A*cid ic, a. (Min.) 1. Containing a high percentage of silica; opposed to {basic}. [1913 Webster] 2. of or relating to acid; having the character of an acid, as an acidic solution. [PJC] …   The Collaborative International Dictionary of English

  • acidic — (adj.) 1877, originally in geology; see ACID (Cf. acid) (n.) + IC (Cf. ic) …   Etymology dictionary

  • acidic — [ə sid′ik] adj. 1. ACID FORMING 2. acid 3. Geol. designating or of igneous rocks with more than 66% silica …   English World dictionary

  • acidic — [[t]əsɪ̱dɪk[/t]] 1) ADJ GRADED Acidic substances contain acid. Dissolved carbon dioxide makes the water more acidic. Ant: alkaline 2) ADJ GRADED An acidic taste is sour and sharp. If the sprouts smell, or taste, mouldy or acidic do not eat them.… …   English dictionary

  • acidic — a|cid|ic [ ə sıdık ] adjective 1. ) containing acid: acidic soil 2. ) very sour: a very unpleasant acidic taste …   Usage of the words and phrases in modern English

  • acidic — UK [əˈsɪdɪk] / US adjective 1) containing acid acidic soil 2) very sour a rather unpleasant acidic taste …   English dictionary

  • acidic — /euh sid ik/, adj. 1. acid (def. 6). 2. Geol. acid (def. 9). 3. acid forming (def. 1). 4. containing acid bearing pollutants: Acidic runoff is poisoning the nation s rivers. [1875 80; ACID + IC] * * * …   Universalium

  • acidic — adj. Acidic is used with these nouns: ↑soil …   Collocations dictionary

  • acidic — a|cid|ic [əˈsıdık] adj 1.) very sour ▪ Some fruit juices taste a bit acidic. 2.) containing acid …   Dictionary of contemporary English

  • acidic — adjective 1》 having the properties of an acid, or containing acid; having a pH below 7. 2》 sharp tasting or sour: acidic wine.     ↘(of a person s speech) bitter or cutting. Derivatives acidity noun …   English new terms dictionary

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