驗證網址www.thefreedictionary.com安全性

ester - definition of ester by The Free Dictionary

es·ter (ĕs′tər) n. Any of a class of compounds derived from an oxyacid, usually resulting from the reaction of an oxyacid and an alcohol with the elimination of water. [German, short for Essigäther: Essig, vinegar (from Middle High German ezzich, from Old...

網址安全性掃描由 google 提供