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sill |
Also found in: Dictionary/thesaurus, Medical, Acronyms, Wikipedia, Hutchinson | 0.04 sec. |
sillor sheetIn geology, a tabular igneous intrusion emplaced parallel to the bedding of the enclosing rock. Although they may have inclined orientations, nearly horizontal sills are most common. Sills may range from a few inches to hundreds of feet thick and up to hundreds of miles long. They include rock compositions of all types. sill 1. a shelf at the bottom of a window inside a room 2. a horizontal piece along the outside lower member of a window, that throws water clear of the wall below 3. the lower horizontal member of a window or door frame 4. a continuous horizontal member placed on top of a foundation wall in order to carry a timber framework 5. a flat usually horizontal mass of igneous rock, situated between two layers of older sedimentary rock, that was formed by an intrusion of magma How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| The window frame which prevented anyone from sitting on the outer sill was being forced out by two footmen, who were evidently flurried and intimidated by the directions and shouts of the gentlemen around. Grasping the sill I pulled myself up to a sitting posture without looking into the building, and gazed down at the baffled animal beneath me. The students stood up on their stools and craned their heads forward to get a better view of me, and two little girls jumped upon the sill of an open window where they could see more plainly. |
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