from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The act of marking or outlining with lines.
  • n. An outline.
  • n. An arrangement of lines.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A linear feature in rock, often structural
  • n. The way in which line breaks are inserted in a poem

from the GNU version of the Collaborative International Dictionary of English

  • n. Delineation; a line or lines.

from The Century Dictionary and Cyclopedia

  • n. A marking by lines; disposition or arrangement of lines.
  • n. In zoology, one or more line-like marks on a surface; the appearance or form of a lineated surface: as, the lineation of the thorax of a fly.
  • n. Mensuration.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the act of marking or outlining with lines
  • n. the line that appears to bound an object


Middle English lineacioun, from Latin līneātiō, līneātiōn-, from līneātus, past participle of līneāre, to make straight, from līnea, thread, line; see line1.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin lineatio (Wiktionary)



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