noun
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the act of marking with lines
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an arrangement of or division into lines
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an outline or contour
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any linear arrangement involving rocks or minerals, such as a parallel arrangement of elongated mineral grains
Etymology
Origin of lineation
1350–1400; Middle English lyneacion < Late Latin līneātiōn- (stem of līneātiō ) the drawing of a line, Latin: direction, line. See lineate, -ion
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
When minerals lie on a plane AND point in a common direction; this is both foliation and lineation.
From Textbooks ● Jan. 1, 2017
Potassium feldspar does not exhibit twinning or striations but may show linear features called exsolution lamellae, also known as perthitic lineation or simply perthite.
From Textbooks ● Jan. 1, 2017
Crooked and jagged, the lineation is a lifetime on display — the joy, sadness, euphoria and thrill of every breath.
From Washington Times ● Jun. 1, 2014
Some of the material swings close to the prosaic, yet Motion's deft lineation and deletions work double-time to preserve the true sense of natural speech.
From The Guardian ● Dec. 14, 2012
Far more definite in position, and complex in lineation, are the small independent systems which appear on the bulbs of the thumb and fingers.
From Finger Prints by Galton, Francis, Sir
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
