slab line

== English == === Pronunciation === === Noun === slab line (plural slab lines) (nautical) A line or small rope by which sailors haul up the foot of the mainsail or foresail. (optometry) The line on a pair of lenses that indicates where a slab-off prism has been applied. (Texas, slang) An informal car club for customized slabs (luxury pre-1980 General Motors vehicles) (electrical engineering) A central conductor surrounded by two planar ground slabs. (climbing) A climbing route that is characterized by a relatively low-angle rock face or slab that lacks significant vertical features such as large holds or overhangs.