hachure

plural hachures

1. historicalcartographyA line on a map indicating the steepness of a slope.⁷

   1 more example

   "The adjoining Fig. 1 shows a mountainous island with the hill slopes indicated by a method of Hill-shading called 'hachures'. These hachures are lines indicating the direction of the slope. Where the slopes are steep the lines are thick and close together, making a dark shade; when the slopes are less steep the lines are finer and wider apart, gradually tapering off and becoming lighter until they stop where the slope ends, so that there is no hill-shading on level country."

   1990, Oxford University Press, The Oxford School Atlas (27th Edition), page 9, recto

present singular third person hachures · participle present hachuring · participle past hachured · past hachured

1. To mark a map with hachures.