Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

alkali

play
noun al·ka·li \ˈal-kə-ˌlī\

Simple Definition of alkali

  • chemistry : a substance that has a bitter taste and that forms a salt when mixed with an acid

Full Definition of alkali

plural al·ka·lies or al·ka·lis

  1. 1 :  a soluble salt obtained from the ashes of plants and consisting largely of potassium or sodium carbonate; broadly :  a substance (as a hydroxide or carbonate of an alkali metal) having marked basic properties — compare base 7a

  2. 2 :  alkali metal

  3. 3 :  a soluble salt or a mixture of soluble salts present in some soils of arid regions in quantity detrimental to agriculture

Origin of alkali

Middle English, from Medieval Latin, from Arabic al-qili the ashes of the plant saltwort


First Known Use: 14th century

Other Chemical Engineering Terms

Rhymes with alkali

abide by, Adonai, alibi, amplify, apple-pie, argufy, assegai, azo dye, basify, beautify, butterfly, by-and-by, caddis fly, calcify, certify, Chou En-lai, citify, clarify, classify, coalify, cockneyfy, codify, college try, cottage pie, crucify, cut-and-try, cutie-pie, DIY, damnify, damselfly, dandify, deify, densify, dignify, dobsonfly, do-or-die, dragonfly, dulcify, eagle eye, edify, evil eye, falsify, fancify, fortify, frenchify, fructify, gasify, Gemini, gentrify, glorify, goggle-eye, goldeneye, gratify, Haggai, harvest fly, hexerei, high and dry, hip and thigh, Hokusai, hook and eye, horrify, hoverfly, humble pie, Iceni, justify, kiss good-bye, lazy eye, lignify, liquefy, lithify, Lorelei, lullaby, Madurai, magnify, Malachi, Maracay, minify, modify, mollify, Molokai, Mordecai, mortify, multi-ply, multiply, mummify, mystify, nazify, notify, nullify, occupy, old school tie, on standby, on the fly, ossify, overbuy, overfly, overlie, pacify, Paraguay, passerby, peccavi, petrify, PPI, preachify, prettify, private eye, prophesy, purify, putrefy, qualify, quantify, ramify, rarefy, ratify, RBI, rectify, reify, res gestae, robber fly, runner's high, Russify, samurai, sanctify, satisfy, scarify, schwarmerei, semidry, set store by, shepherd's pie, shoofly pie, signify, simplify, Spanish fly, specify, speechify, stratify, stultify, stupefy, sweetie pie, Tenebrae, terrify, testify, tie-and-dye, tigereye, Trans Alai, tumble dry, typify, uglify, underlie, unify, Uruguay, Veneti, verify, versify, vilify, vinify, vitrify, vivify, weather eye, Windsor tie, xanthene dye, yuppify, zombify


Medical Dictionary

alkali

play
noun al·ka·li \ˈal-kə-ˌlī\

Medical Definition of alkali

plural al·ka·lies or al·ka·lis

  1. :  a substance (as a hydroxide or carbonate of an alkali metal) having marked basic properties—compare base




Learn More about alkali


Seen and Heard

What made you want to look up alkali? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 7, 2016

a slight offense

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

spindrift duvet kittly-benders pince-nez
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ