a variety of microcline, rich in sodium and sometimes having a play of color: sometimes considered a variety of .
A white to colorless triclinic mineral of the alkali feldspar group. It is a common constituent in the matrices of slightly alkaline volcanic rocks. Chemical formula: (Na,K)AlSi3O8.
anorthography anorthography an·or·thog·ra·phy (ān’ôr-thŏg’rə-fē) n. See agraphia.
a granular plutonic rock composed largely of labradorite or a more calcic feldspar. Historical Examples In Canada great portions of the eastern portion of the Dominion are formed of gabbros, norite, anorthosite and allied rock types. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 Various noun a coarse-grained plutonic igneous rock consisting almost entirely of […]
. anoscope a·no·scope (ā’nə-skōp’) n. A short speculum for examining the anal canal and lower rectum.
absence or loss of the sense of smell. noun (pathol) loss of the sense of smell, usually as the result of a lesion of the olfactory nerve, disease in another organ or part, or obstruction of the nasal passages n. “loss of sense of smell,” 1811, Modern Latin, from Greek an-, privative prefix (see an- […]