lineationPronunciation: /ˌlɪnɪˈeɪʃ(ə)n/Definition of lineation noun [mass noun] the action or process of drawing lines or marking with lines. [count noun] a line or linear marking; an arrangement or group of lines:magnetic lineations [count noun] a contour or outline. the division of text into lines:the punctuation and lineation are reproduced accuratelyOrigin: late Middle English: from Latin lineatio(n-), from lineare 'make straight'lineation in other Oxford dictionaries Definition of lineation in the US English dictionary