triple-decker

tri·ple-deck·er

(trĭp′əl-dĕk′ər)n. Something, such as a structure or sandwich, that has three decks, floors, or layers.

tri′ple-deck′er

n. a sandwich made of three slices of bread with two layers of filling; club sandwich. [1945–50]

Thesaurus

Noun

1.

triple-decker - made with three slices of usually toasted breadclub sandwich, three-deckersandwich - two (or more) slices of bread with a filling between them