Crossword solverSynonyms for plethysmograph5 crossword answers for “plethysmograph” (14), sorted by letter count.How many letters?All515218119121115 letters 2measuring device(9,6)measuring system(9,6)18 letters 1body plethysmograph(4,14)19 letters 1measuring instrument(9,10)21 letters 1digital plethysmograph(7,14)