[ ˌdʒi:ə(ʊ)'dɛsɪk , -'di:sɪk ]
■ adjective
1》 relating to or denoting the shortest possible line between two points on a sphere or other curved surface.
2》 (of a dome) constructed from struts which follow ~ lines and form an open framework of triangles and polygons.
3》 another term for geodetic .