[lin-ee-ey-shuh n]


an act or instance of marking with or tracing by lines.
a division into lines.
an outline or delineation.
an arrangement or group of lines.

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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for lineation

British Dictionary definitions for lineation



the act of marking with lines
an arrangement of or division into lines
an outline or contour
any linear arrangement involving rocks or minerals, such as a parallel arrangement of elongated mineral grains
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for lineation

late 14c., from Latin lineationem (nominative lineatio) "the making in a straight line," noun of action from past participle stem of lineare (see lineament).

Online Etymology Dictionary, © 2010 Douglas Harper