The Collaborative International Dictionary of English v.0.48:
Hachure \Hach"ure\ (h[a^]ch"[-u]r), n. [F., fr. hacher to hack. See Hatching.] (Fine Arts) A short line used in drawing and engraving, especially in shading and denoting different surfaces, as in map drawing. See Hatching. [1913 Webster]WordNet (r) 3.0 (2006):
hachure n 1: shading consisting of multiple crossing lines [syn: hatch, hatching, crosshatch, hachure]