[ lin-ee-ey-shuh n ]
/ ˌlɪn iˈeɪ ʃən /


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. 2020

Examples from the Web for lineation

  • There are two methods of observing systematically the lineation patterns.

    Dactylography|Henry Faulds

British Dictionary definitions for lineation

/ (ˌlɪnɪˈeɪʃən) /


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