Mammoth Uncensored Word List:
74 words ending with am, 9 letters long

airstream anemogram angiogram audiogram bitstream cablegram calligram candygram cartogram centigram cheongsam cladogram cofferdam commendam crossbeam cryptogam deprogram femtogram foregleam grannycam hectogram hektogram heliogram hierogram histogram jetstream karyogram kissagram kissogram lorazepam mammogram microbeam microgram midstream milligram mridamgam mridangam myelogram nephogram neurogram opobalsam outscream outstream pentagram petersham petrogram phaenogam phonogram photogram pictogram pipedream piracetam pyelogram pyroceram quickbeam radiogram reprogram scalogram sialogram sociogram spirogram spodogram steadicam styrofoam tachogram temazepam tephigram tetragram videogram whitebeam yoctogram yottagram zeptogram zettagram