alkali
/ΛΓ¦l.kΙ.laΙͺ/
B2 Β· Upper Int.β
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Simple Meaning
a substance that can mix with acid to make a salt, like baking soda or soap.
When to Use
πAcademic WritingβοΈTechnical
Upper Intermediate β fluent in familiar topics
Examples in Conversation
βYou can use an alkali like baking soda to clean the oven.β
βIn chemistry class, we tested which liquids were acid and which were alkali.β
Learning Path
βΆFull Definition
One of a class of caustic bases, such as soda, soda ash, caustic soda, potash, ammonia, and lithia, whose distinguishing peculiarities are solubility 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.