any of several north american plants belonging to the genus heuchera, of the saxifrage family, especially h. americana, having mottled foliage and greenish-white flowers.
the of any of these plants, used as an astringent.
any of several north american plants of the saxifragaceous genus heuchera, having small white, reddish, or green bell-shaped flowers and astringent roots
the root of such a plant
variant of , especially before a vowel.
the natural or synthetic oxide of aluminum, al 2 o 3 , occurring in nature in a pure crystal form as corundum. historical examples the garnet is but as hard as quartz, and is a silicate of alumina with lime and a little iron. the a b c of mining charles a. bramble it is […]
- Alumina cement
a quick-setting cement with a large bauxite content.
- Alumina trihydrate
. a crystalline, water-insoluble powder, al(oh) 3 or al 2 o 3 ⋅3h 2 o, obtained chiefly from bauxite: used in the manufacture of gl-ss, ceramics, and printing inks, in dyeing, and in medicine as an antacid and in the treatment of ulcers.
containing or yielding aluminum. adjective containing or yielding aluminium or alumina