alkaline C2 Topic:Materials & Substances US /ˈæl.kə.laɪn/ UK /ˈæl.kəl.aɪn/ See IPA manual Freq #46473 Meanings 1 adj relating to or containing an alkali The chemist tested the alkaline solution. 2 adj Of, or relating to an alkali, one of a class of caustic bases. [Joseph Black's] experiments on magnesia alba, quick lime, and other alkaline substances proved that "fixed air" is given off when limestone is burned, and that the same loss is incurred when it is dissolved in muriatic acid (hydrochloric acid). 3 adj Having a pH greater than 7. The chemist tested the alkaline solution. 4 noun An alkaline battery. The chemist tested the alkaline solution. Thesaurus Synonyms 1 adj · relating to or containing... alkalic 3 adj · having a ph greater than 7. basic ↔ Opposites acidic Word family Derived forms alkalinelyalkalinisealkalinityalkalinizationalkalinizeantalkalineantialkalinehyperalkalineimmunoalkalinenonalkalineperalkalinesubalkaline Related forms alkalescentalkalialkalicalkaloid Etymology First attested in 1677. From alkali + -ine, ultimately from Arabic اَلْقِلْي (al-qily, “alkali, ashes of the saltwort”), related to قَلَى (qalā, “to roast in a pan, fry”). Topics Materials & Substances External links Cambridge Dictionary Wiktionary Google Images # alkaline **Type:** Word **Level:** C2 **Part of speech:** adj, noun **IPA (US):** /ˈæl.kə.laɪn/ **IPA (UK):** /ˈæl.kəl.aɪn/ **Frequency rank:** 46473 ## Meanings 1. relating to or containing an alkali 2. Of, or relating to an alkali, one of a class of caustic bases. 3. Having a pH greater than 7. 4. An alkaline battery. ## Examples - The chemist tested the alkaline solution. - [Joseph Black's] experiments on magnesia alba, quick lime, and other alkaline substances proved that "fixed air" is given off when limestone is burned, and that the same loss is incurred when it is dissolved in muriatic acid (hydrochloric acid). - The chemist tested the alkaline solution. - The chemist tested the alkaline solution. ## Synonyms - alkalic - basic ## Antonyms - acidic ## Derived Forms - alkalinely - alkalinise - alkalinity - alkalinization - alkalinize - antalkaline - antialkaline - hyperalkaline - immunoalkaline - nonalkaline - peralkaline - subalkaline ## Related Forms - alkalescent - alkali - alkalic - alkaloid ## Etymology First attested in 1677. From alkali + -ine, ultimately from Arabic اَلْقِلْي (al-qily, “alkali, ashes of the saltwort”), related to قَلَى (qalā, “to roast in a pan, fry”). ## Topics - Materials & Substances markdown