ester

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ester¹

  • /ˈɛstɚ/ US
  • /ˈɛstə/ UK

Sounds like Esther, str · Rhymes with -ɛstə(ɹ)

Where it comes from

Borrowed from German Ester, possibly a blend of Essig + Äther. See ether for more.

noun esters

  1. A compound most often formed by the condensation of an alcohol and an acid, with elimination of water, which contains the functional group carbon-oxygen double bond (i.e., carbonyl) joined via carbon to another oxygen atom. To produce a test material containing at least 75 percent omega-3 polyunsaturates, the menhaden triglycerides are transesterified to produce fatty acid ethyl esters. The esters are reacted with urea dissolved in hot ethanol and the solution is cooled overnight.

Ester²

proper noun

  1. A female given name from Hebrew, alternative form of Esther.

Thesaurus

Closest in meaning: methyl, standing, access, aunt, priority, esther, estonians, acetate, carbomethoxy, glyceride, triglyceride, lactone, acrylate, polyester, propionate, butyrate

Translations

Every language

noun compound with carbon-oxygen double bond joined via carbon to another oxygen atom

Españoléster
한국어에스터 eseuteo, 에스테르 eseutereu
日本語エステル esuteru
中文酯 zhǐ, 酯類 /酯类 zhǐlèi, 𨤎 yán
Portuguêséster
Françaisester
DeutschEster
Italianoestere
Ελληνικάεστέρας estéras
Românăester
Русскийсло́жный эфи́р slóžnyj efír
עבריתאֶסְטֶר ester

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Cite this
MLA

"ester." Wiktionary, via Micwyn, micwyn.com/word/ester. Accessed 6 Nov. 2026.

APA

ester. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/ester

Chicago

"ester." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/ester.

BibTeX
@misc{ester_2026,
  title = {ester},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/ester},
  urldate = {2026-11-06}
}