alkali

名词 n.
中文释义
发音 ălʹkə-lī'

英文释义

名词 n.
  1. One of a class of caustic bases, such as soda, soda ash, caustic soda, potash, ammonia, and lithia, whose distinguishing characteristics are dissolving in alcohol and water, uniting with oils and fats to form soap, neutralizing and forming salts with acids, turning to brown several vegetable yellows, and changing reddened litmus to blue. countable,uncountable
    — Alkalies may be defined as bodies which combine with acids so as to impair or neutralize their activity, and produce what are called salts. They are distinguished by properties the reverse of acids, and the two classes are generally looked upon as antagonist substances.
  2. Soluble mineral matter, other than common salt, contained in soils of natural waters. US,Western,countable,uncountable

词形变化

alkalis plural alkalies plural

词汇关系

近义词
base
反义词
acid
衍生词
alkalaemia alkalamide alkalemia alkalescent alkali basalt alkali bee alkalibiont alkalibiontic alkalic alkali cellulose alkali feldspar alkaliferous alkali flat alkali fly alkalify alkaligen alkaligenous alkaligrass alkali grass alkali green alkali metal alkalimeter alkalimetric alkalimetry alkaline alkalinogenic alkalious alkaliphile alkaliproof alkalization alkalize alkalosis antalkali bialkali caustic alkali caustic marine alkali caustic volatile alkali caustic wood alkali chloralkali haloalkaliphilic milk-alkali syndrome superalkali
相关词
alkalied alkaloid caustic pH

词源

From French alcali, from Medieval Latin alcali, ultimately from Arabic اَلْقِلْي (al-qily, “alkali, ashes of the saltwort”), related to قَلَى (qalā, “to roast in a pan, fry”).
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