Word Study
doorsill
WORDNET DICTIONARY
Noun doorsill has 1 sense
- doorsill(n = noun.artifact) doorstep, threshold - the sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway; Array is a part of door, doorway, room access, threshold
is a kind of sill
For further exploring for "doorsill" in Webster Dictionary Online