ester
a compound produced by the reaction between an acid and an alcohol with the elimination of a molecule of water, as ethyl acetate, C4H8O2, or dimethyl sulfate, C2H6SO4.
Origin of ester
1Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use ester in a sentence
On the phone, Esters assured me that Kelley's statements about their meetings are a big, honking fabrication.
I was trying to find information about a long-dead character who hailed from Esters' part of the state.
"She did refuse to have me on the show," Esters told me in her distinctly non-whiney way.
Kelley mentioned one other: That Esters has been stomped into submission by an 800-pound Harpo.
For her part, Esters says she hasn't heard from Oprah since the blowup started.
A mixture of the two esters melted within the limits given for the ester of gallic acid.
Some Constituents of the Poison Ivy Plant: (Rhus Toxicodendron) | William Anderson SymeIt consists of esters of glycerine with fatty and other acids, and these are generally termed glycerides.
The New Gresham Encyclopedia | VariousThis fact explains the so-called “catalytic” action of acids and bases in decomposing such compounds as the esters.
It is resolved by solution in sulphuric acid and subsequent hydrolysis of the esters thus produced into dextrose.
Mixed esters—-aceto-sulphate, aceto-benzoate, nitrobenzoyl nitrates, aceto-nitro-sulphates—have also been investigated.
British Dictionary definitions for ester
/ (ˈɛstə) /
chem any of a class of compounds produced by reaction between acids and alcohols with the elimination of water. Esters with low molecular weights, such as ethyl acetate, are usually volatile fragrant liquids; fats are solid esters
Origin of ester
1Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for ester
[ ĕs′tər ]
An organic compound formed when an acid and an alcohol combine and release water. Esters formed from carboxylic acids are the most common, and have the general formula RCOOR′, where R and R′ are organic radicals. Esters formed from simple hydrocarbon groups are colorless, volatile liquids with pleasant aromas and create the fragrances and flavors of many flowers and fruits. They are also used as food flavorings. Larger esters, formed from long-chain carboxylic acids, commonly occur as animal and vegetable fats, oils, and waxes. Esters have a wide range of uses in industry.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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