(mineralogy) Any of a small group of igneous, plutonic, and volcanic minerals formed in magma that did not contain enough silica to satisfy all the chemical bonds. Feldspathoids are silica-poor variants of the feldspar group.

(mineralogy) Resembling a feldspar.

(mineralogy) Any of a large group of rock-forming minerals that, together, make up about 60% of the earth's outer crust. The feldspars are all aluminum silicates of the alkali metals sodium, potassium, calcium and barium. Feldspars are the principal constituents of igneous and plutonic rocks.

A somatic educational system designed to reduce pain or limitations in movement, to improve physical function, and to promote general well-being by increasing students' awareness of themselves and by expanding students' movement repertoire.

(mineralogy) Containing feldspar.

(mineralogy) Any of several alkaline feldspars containing potassium aluminium silicate, KAlSi₃O₈

A surname from German of German and Jewish origin.

plural of feldspar

Resembling or characteristic of feldspar.

A surname.