The Collaborative International Dictionary
Alkaline reaction
Alkaline \Al"ka*line\ (?; 277), a. [Cf. F. alcalin.] Of or pertaining to an alkali or to alkalies; having the properties of an alkali.
Alkaline earths, certain substances, as lime, baryta, strontia, and magnesia, possessing some of the qualities of alkalies.
Alkaline metals, potassium, sodium, c[ae]sium, lithium, rubidium.
Alkaline reaction, a reaction indicating alkalinity, as by the action on limits, turmeric, etc.