| Source | Target | | malathion | malation |
| male joint | szlif zewnętrzny |
| malealdehyde | butenodial, dialdehyd maleinowy |
| maleate | maleinian |
| maleic acid, toxilic acid | kwas maleinowy, kwas cis-butenodiowy |
| maleic hydrazide | hydrazyd kwasu maleinowego |
| maleic resin, maleate | żywica maleinowa |
| malonate | malonian |
| malonic acid | kwas malonowy, kwas propanodiowy |
| malonyl coenzyme A | malonylokoenzym A |
| malt beer | piwo słodowe |
| malt mash, converter mash | zacier piwny |
| malt vinegar | ocet słodowy |
| malt-house | słodownia |
| malting | słodowanie |
| maltose, maltobiose, malt sugar | maltoza, cukier słodowy |
| mandarin oil | olejek mandarynkowy |
| mandelic acid | kwas migdałowy, kwas fenylohydroksyoctowy |
| maneb | maneb |
| manganese | mangan |
| manganese black | czerń manganowa |
| manganese group | manganowce |
| manganese violet | fiolet manganowy |
| manganese(II) sulfate | siarczan(VI) manganu(II) |
| manganese(III) chloride, manganese trichloride | chlorek manganu(III), trichlorek manganu |
| manganese(III) oxide | tlenek manganu(III), tritlenek dimanganu |
| manganese(III) sulfate | siarczan(VI) manganu(III) |
| manganese(IV) oxide, manganese dioxide | tlenek manganu(IV), ditlenek manganu |
| manganese(IV) sulfide | siarczek manganu(IV), disiarczek manganu |
| manganese(VII) oxide, manganese heptoxide | tlenek manganu(VII), heptatlenek dimanganu |
| manganic, manganese(III) | manganowy, manganu(III) |
| manganite | manganian(IV) |
| manganite | manganit |
| manganometry | manganometria |
| manganous, manganese(II) | manganawy, manganu(II) |
| Manila copal | kopal Manila |
| manipulator | manipulator |
| man-made element | pierwiastek syntetyczny |
| man-made fibre, artificial fibre | włókno sztuczne |
| mannanase | mannanaza |
| mannitol hexanitrate, hexanitromannitol, nitromannite, nitromannitol | heksaazotan mannitu, heksaazotan(V) mannitu, nitromannit |
| mannitol salt agar, MSA | pożywka Chapmana, podłoże Chapmana |
| mannitol, mannite, hexahydric alcohol, sorbitol | mannit, heksanoheksaol, sorbit |
| mannose | mannoza |
| mannosidase | mannosydaza |
| mannuronate | mannuronian |
| mannuronic | mannuronowy |
| manometer liquid-level indicator | poziomowskaz manometryczny |
| manometer, pressure gauge | manometr, ciśnieniomierz |
| manometric | manometryczny |
| manometric gas analysis, manometry | analiza gazowa manometryczna |
| manoscopy | analiza gazometryczna |
| manual spectrophotometer, non-recording spectrophotometer | spektrofotometr punktowy |
| marble | marmur |
| marcasite | markasyt |
| margarite | margaryt |
| marginal | brzegowy |
| marine oil | olej ze zwierząt morskich |
| marine salt, sea salt, bay salt | sól morska, sól z wody morskiej |
| marjoram oil, calamintha oil | olejek majerankowy |
