Acidic Meaning
/əˈsɪ.dɪk/Definition, CEFR level C1, pronunciation, examples, and quiz.
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Definition
adjOf or relating to acid; having the character of an acid.
adjHaving a pH less than 7, or being sour, or having the strength to neutralize alkalis, or turning a litmus paper red.
Sentence Examples
Lemons and limes are acidic fruits.
The ocean is becoming more acidic.
Lemon juice is an example of an acidic liquid.
CEFR Practice Quiz
Lemons taste sour because they contain a high amount of ____ citrus juice.
CEFR Practice Quiz (Alternate)
Some plants struggle to grow in soil that is too ____.
Word Origin & History
From acid + -ic. Doublet of acidy.
Literary Quotations & Historical Citations
"The swampland is an extensive pegasse swamp, which is rich in organic matter and intensely acidic."
— 2015, Ramesh Gampat, Guyana: from Slavery to the Present, volume 2:
"Local workers hike up the side of the mountain and down into the crater at the top to harvest its sulfur—a byproduct of the gas that escapes from the volcano’s vents and collects near the shores of an acidic lake at the crater’s center. The chemical is used in industry worldwide, from making matchsticks to vulcanizing rubber, but Ijen’s sulfur goes mostly to local factories, which use it to bleach sugar."
— 2015 February 25, Kevin McElvaney, “Inside Indonesia's Ijen Volcano”, in The Atlantic, archived from the original on 06 Mar 2016:
Explore More C1 Vocabulary Words
CEFR Practice Quiz
Lemons taste sour because they contain a high amount of ____ citrus juice.
CEFR Practice Quiz (Alternate)
Some plants struggle to grow in soil that is too ____.