diffusion pump diffusion process • diffusionism · · · Info · Definitions · Synonyms · Characters · · diffusion pump · · Text Common · · Latin · · Scripts 14 · · Length 4 · · Syllables Definitions · · · (noun) vacuum pump used to obtain a high vacuum. Synonyms: condensation pump, diffusion pump. · · Noun Definition 1 Synonyms · · · condensation pump · · Synonym 1 Characters · · space U+0020 d latin small letter d U+0064 f latin small letter f U+0066 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073 u latin small letter u U+0075