Word.ws English Dictionary

feldspathoid

feldspathoid noun: 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.

Noun

feldspathoid (countable and uncountable, plural feldspathoids)

  1. 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.

Adjective

feldspathoid (not comparable)

  1. Resembling a feldspar.

Forms of feldspathoid

pluralfeldspathoids
alternative formfoid

Origin of feldspathoid

From German Feldspath (“feldspar”) + -oid.

Words formed from feldspathoid

Questions about feldspathoid

What does feldspathoid mean?
Feldspathoid means 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.
What part of speech is feldspathoid?
Feldspathoid can be a noun or an adjective.
What is the plural of feldspathoid?
The plural of feldspathoid is feldspathoids.

Words near feldspathoid in the dictionary

  1. feldspathize
  2. feldspathized
  3. feldspathizes
  4. feldspathizing
  5. feldspatho-litho-quartzose
  6. feldspathoid
  7. feldspathoidal
  8. feldspathoids
  9. feldspatholithic
  10. feldspatholithoquartzose
  11. feldspathose

Source and license

Adapted from Wiktionary: feldspathoid (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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