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éster

Spanish, noun/ˈesteɾ/

éster is spelled É-S-T-E-R (5 letters) and appears about once in every 8 million words in written Spanish, the 103,935th most frequent Spanish word form (wordfreq, 2021 data). Éster is a Spanish masculine noun meaning “ester” (English Wiktionary, September 2026). The Spanish Wiktionary (Wikcionario) defines it as “Compuesto, formado generalmente por la condensación de un alcohol y un ácido, con eliminación de agua, que…”.

What does éster mean in English?

noun

  1. 1

    masculineester

Source: English Wiktionary, Spanish section, dump of September 2, 2026 (CC BY-SA 4.0).

How Spanish dictionaries define it

noun: 1. Compuesto, formado generalmente por la condensación de un alcohol y un ácido, con eliminación de agua, que contiene el grupo funcional de doble enlace carbono-oxígeno (es decir, carbonilo) unido a través del carbono a otro átomo de oxígeno.

The definition in the Spanish Wiktionary (Wikcionario), in Spanish.

Source: Spanish Wiktionary (Wikcionario), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.

Forms of éster

  • ésteres plural

Source: English Wiktionary and Spanish Wiktionary (Wikcionario) (dumps of September 2, 2026 and September 1, 2026).

How do you pronounce éster?

  • /ˈesteɾ/
  • [ˈes.t̪eɾ]
  • [ˈest̪eɾ]

Sources: English Wiktionary, Spanish Wiktionary (Wikcionario) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.

English words that translate to éster

Source: the translation tables of the English Wiktionary, dump of September 2, 2026.

How common is éster in Spanish?

éster appears about once in every 8 million words in written Spanish.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

What to look up after éster