(Geomorphologie) Flache Aufwölbung des Meeresbodens oder des Festlands ohne deutl. sichtbare Ränder.
(allgemein) Unterster, waagerechter Teil der Türumrahmung.
ETYM Old Eng. barrere, barere, French barričre, from barre bar. Related to Bar.
1. A structure or object that impedes free movement.
2. Any condition that makes it difficult to make progress or to achieve an objective; SYN. roadblock.
3. Anything serving to maintain separation by obstructing vision or access.
1. A continuous horizontal timber forming the lowest member of a framework or supporting structure.
2. (Geology) A flat (usually horizontal) mass of igneous rock between two layers of older sedimentary rock.
Sheet of igneous rock created by the intrusion of magma (molten rock) between layers of pre-existing rock. (A dyke, by contrast, is formed when magma cuts across layers of rock.) An example of a sill in the UK is the Great Whin Sill, which forms the ridge along which Hadrian’s Wall was built.
A sill is usually formed of diabase, a rock that is extremely resistant to erosion and weathering, and often forms ridges in the landscape or cuts across rivers to create waterfalls.
ETYM Old Eng. threswold, threshwold, as. threscwald, therscwald, therscold, threscold, from threscan, therscan, to thresh; akin to Icel. threskjöde, thröskuldr, Swed. tröskel, Dan. taerskel. Related to Thrash.
1. The smallest detectable sensation; SYN. limen.
2. The starting point of a new state or experience.
(Eisenbahn) Unterlage für Eisenbahnschienen.
Sleeping car.
One of the cross braces that support the rails on a railway track; SYN. railroad tie, crosstie, sleeper.
Any of the transverse supports to which railroad rails are fastened to keep them in line