Definition of groundsill in English:

groundsill

Syllabification: ground·sill
(also groundsel)

noun

The horizontal beam or timber in a building that is secured to the foundation and is the base for the rest of the structure.
More example sentences
  • In most cases, the damage included tilted roofs, broken groundsills, and broken walls and tile.
  • The cruck blades used in its construction spring directly from the groundsills and these support the roof timbers.
  • The inside groundsill has anchor bolts previously installed that permit an easy mounting of columns or posts on the inside groundsill.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day semblance
Pronunciation: ˈsembləns
noun
the outward appearance or apparent form of something…