PREASSEMBLED
Scrabble letter values: P3R1E1A1S1S1E1M3B3L1E1D2 = 19
Definition
PREASSEMBLED is the past tense of PREASSEMBLE.
verb PREASSEMBLE: to manufacture sections of (a building), especially in a factory, so that they can be easily transported to and rapidly assembled on a building site of buildings.
Synonyms of PREASSEMBLE: prefabricate