'MILANO' SPACECRAFT FROM THE SCI-FI MOVIE 'GUARDIANS OF THE GALAXY'. 1  THE HOLLYWOOD HIT Guardians of the Galaxy was a rip-roaring space opera that punched its way to popularity, and now stands in third place on the Marvel Studios all-time hit list.
Definition of knee wall. : a partition for supporting roof rafters when the span is great or for forming a side wall (as of a second-story room) under a pitched roof.
Princeton's WordNet(0.00 / 0 votes)Rate this definition: 1  wall(noun) an architectural partition with a height and length greater than its thickness; used to divide or enclose an area or to support another structure. 2  wall(noun) anything that suggests a wall in structure or function or effect.