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ácido

acid

noun adjective AH-see-doh Less Common

Origin: From Latin acidus ('sour').

Also means

sour, tart

Usage Note

Ácido functions as both noun (el ácido clorhídrico — 'hydrochloric acid') and adjective (sabor ácido — 'sour taste'). The accent on the first syllable marks it as a proparoxytone (stress on the antepenultimate), distinguishing it from the regular acido (non-word). In colloquial Mexican Spanish ácido can also be slang for LSD, a register completely separate from the chemistry and food uses.

Examples

"El limón tiene un sabor muy ácido."

Natural Translation

Lemon has a very sour taste.

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