Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- adjective Of, relating to, or being a surface characterized by smooth, shell-like convexities and concavities, as on fractured obsidian.
from The Century Dictionary.
- In mineralogy, having convex elevations and concave depressions like shells: applied principally to such a surface produced by fracture, as exemplified in obsidian.
- In mathematics, pertaining or relating to the conchoid: as, Holm's conchoidal screw.
from the GNU version of the Collaborative International Dictionary of English.
- adjective (Min.) Having elevations or depressions in form like one half of a bivalve shell; -- applied principally to a surface produced by fracture.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective mineralogy Of a type of
irregular fracture havingplanar ,concentric curves, like those on a mussel shell. Of a mineral having such a fracture, such asflint .
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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This is referred to as conchoidal fracture; glass fractures in the same way.
Quartz 2008
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When someone breaks a window the glass shatters in a series of conchoidal breaks—curved fracture lines.
A Lincoln Rhyme eBook Boxed Set Jeffery Deaver 2001
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The conchoidal fractures began on the clean side of the glass and ended on the dirty side.
A Lincoln Rhyme eBook Boxed Set Jeffery Deaver 2001
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When someone breaks a window the glass shatters in a series of conchoidal breaks — curved fracture lines.
The Coffin Dancer Deaver, Jeffery 1998
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The conchoidal fractures began on the clean side of the glass and ended on the dirty side.
The Coffin Dancer Deaver, Jeffery 1998
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At ordinary temperatures ebonite is hard and brittle and breaks with a well-marked conchoidal fracture.
On Laboratory Arts Richard Threlfall
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The twigs soon become encrusted with a mammelated substance of a red colour more or less deep, nearly transparent, hard, and having a brilliant conchoidal fracture.
Field's Chromatography or Treatise on Colours and Pigments as Used by Artists George Field
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The white flakes do not exhibit the true conchoidal fracture in such perfection elsewhere; nor break off in such delicious morsels, edged with delicate brown.
Acadia or, A Month with the Blue Noses Frederic S. Cozzens
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This one can see by the traces of conchoidal fracture which they all show.
Anahuac : or, Mexico and the Mexicans, Ancient and Modern Edward Burnett Tylor
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There were built-up fabrics, called _Charlottes_, caky externally, pulpy within; there were also _marangs_, and likewise custards, -- some of the indolent-fluid sort, others firm, in which every stroke of the teaspoon left a smooth, conchoidal surface like the fracture of chalcedony, with here and there
The Atlantic Monthly, Volume 05, No. 30, April, 1860 Various
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