conchoidal
/kɑŋˈkɔɪ.dəl/
Word Rarity
Very rare
Frequency: 1.27 in modern English
18
Scrabble Score
10
Letters
2
Syllables
8
Unique Chars
Meaning
adj
Of or pertaining to a conchoid; that may be defined as a conchoid.
Example Sentences
- "c. 1695, Isaac Newton, 1976, D. T. Whiteside (editor), The Mathematical Papers of Isaac Newton, Volume 7: 1691-1695, page 621, […] a conchoidal hyperbola with an oval at its convexity."
- "1821, Coal, entry in Andrew Ure, A Dictionary of Chemistry on the Basis of Mr Nicholson's, unnumbered page, It is distinguished by its splendent lustre and conchoidal fracture."
- "Some flakes detached in a controlled manner have characteristics of conchoidal fracture."
- "On one side of the radial edge, the conchoidal fractures form right angles, that is, form a perpendicular with the edge."
- "If grains derived from these rocks are unweathered after separation from the parent rock (a very rare occurrence), they may contain either conchoidal breakage patterns if grains are large, or upturned plates and flat upper and lower surfaces if small grains are considered."
- "1821, Focus of Philosophy, Science and Art, Volume 1, Issues 1-4, page 74, The customary transitions of pitchstone are, into Chalcedony, Chert, Semi-opal; also into a substance resembling conchoidal shining jasper, found in clay strata, entangled in trap, or volcanic rock; and lastly, into Trap."
Etymology
From conchoid + -al.
Regional Pronunciation
- American English: /kɑŋˈkɔɪ.dəl/
- British English: /kɒŋˈkɔɪ.dəl/
Inflected Forms
more conchoidal (comparative)
most conchoidal (superlative)