/sand"wich, san"-/ , n.
1. two or more slices of bread or the like with a layer of meat, fish, cheese, etc., between each pair.
2. See open sandwich .
3. something resembling or suggesting a sandwich, as something in horizontal layers: a plywood sandwich.
v.t.
4. to put into a sandwich.
5. to insert between two other things: to sandwich an appointment between two board meetings.
[ 1755-65; named after the fourth Earl of Sandwich (1718-92) ]