Share this entry

Share this page

mica

Line breaks: mica
Pronunciation: /ˈmʌɪkə
 
/

Definition of mica in English:

noun

[mass noun]
A shiny silicate mineral with a layered structure, found as minute scales in granite and other rocks, or as crystals. It is used as a thermal or electrical insulator.
Example sentences
  • The next most common minerals are silicates, such as mica, feldspar, pyroxene, and the olivines, which break down to clay, the soluble elements they contain being mostly carried away in solution.
  • The foliation is marked by chloritc, white mica and minute quartz grains.
  • This partial drying could remove some of the water layer between mica and the bilayer, increasing the electrostatic repulsion between the substrate and lipid.

Origin

early 18th century: from Latin, literally 'crumb'.

Derivatives

micaceous

1
Pronunciation: /mɪˈkeɪʃəs/
adjective
Example sentences
  • Some of the material contained micaceous masses of specular hematite associated with quartz, epidote, and numerous veinlets of calcite.
  • Impressive blades and masses of lustrous micaceous hematite occur in localized quartz veins, and reniform goethite is found in the walls.
  • I have always regarded specular hematite as a micaceous or platy form that would be very difficult to fashion into beads.

Definition of mica in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day boscage
Pronunciation: ˈbɒskɪdʒ
noun
a mass of trees or shrubs