(of a plant) requiring a pH of 7.1 to 9 for optimal growth.
- Alkali metal
any of the group of univalent metals including potassium, sodium, lithium, rubidium, cesium, and francium, whose hydroxides are alkalis. Historical Examples Write the general formula of an alum, representing an atom of an alkali metal by X and an atom of a trivalent metal by Y. An Elementary Study of Chemistry William McPherson Barium nitrate, […]
an instrument for determining the quantity of carbon dioxide. Historical Examples It will at once be seen that every alkalimeter division of the first of the above acids, and every 10 gr. Cooley’s Cyclopdia of Practical Receipts and Collateral Information in the Arts, Manufactures, Professions, and Trades…, Sixth Edition, Volume I Arnold Cooley noun an […]
- Alkali reserve
alkali reserve alkali reserve n. The sum total of the basic ions of the blood and other body fluids that act as buffers and maintain the normal pH of the blood.
- Alkali rock
any igneous rock with a marked preponderance of alkali and a low percentage of silica.