Definition of Sodium 1. A silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt) Noun Synonyms for word "sodium" Semanticaly linked words with "sodium" Hyponims for word "sodium" has derived form soda etymology disodium etymology nonsodium etymology organosodium etymology radiosodium etymology tetrasodium etymology sóidiam [Irish] etymology soodin [Navajo, Navaho] etymologically related soda is derived from Pentothal sodium is derived from disodium is derived from hydrogen sodium arsenate is derived from monosodium is derived from sodian is derived from sodic is derived from sodio- is derived from sodium Amytal is derived from sodium Pentothal is derived from sodium aluminium fluoride is derived from sodium aluminum fluoride is derived from sodium amalgam is derived from sodium antimonate is derived from sodium arsenate is derived from sodium arsenide is derived from sodium aurate is derived from sodium benzoate is derived from sodium bicarbonate is derived from sodium bisulfite is derived from sodium bisulphite is derived from sodium borohydride is derived from sodium bromate is derived from sodium bromide is derived from sodium carbide is derived from sodium carbonate is derived from sodium carbonate peroxyhydrate is derived from sodium chlorate is derived from sodium chloride is derived from sodium chlorite is derived from sodium chromate is derived from sodium dithiophosphate is derived from sodium fluoride is derived from sodium hexafluoroantimonate is derived from sodium hexametaphosphate is derived from sodium hydride is derived from sodium hydrogen carbonate is derived from sodium hydrogen sulfite is derived from sodium hydrogen sulphite is derived from sodium hydroxide is derived from sodium iodide is derived from sodium lamp is derived from sodium manganate is derived from sodium metaphosphate is derived from sodium monofluorophosphate is derived from sodium nitrate is derived from sodium orthophosphate is derived from sodium oxide is derived from sodium perborate is derived from sodium peroxide is derived from sodium perxenate is derived from sodium phosphate is derived from sodium phosphomolybdate is derived from sodium plumbate is derived from sodium polysulfide is derived from sodium polysulphide is derived from sodium pump is derived from sodium pyrophosphate is derived from sodium selenide is derived from sodium selenite is derived from sodium soap is derived from sodium stannate is derived from sodium sulfate is derived from sodium sulfide is derived from sodium sulphate is derived from sodium sulphide is derived from sodium terbium borate is derived from sodium tetraborate decahydrate is derived from sodium tetraborate pentahydrate is derived from sodium thiosulfate is derived from sodium thiosulphate is derived from sodium trimetaphosphate is derived from sodium tripolyphosphate is derived from sodium tungstate is derived from sodium vapor lamp is derived from sodium vapour lamp is derived from sodium zircofluoride is derived from sodium-23 is derived from sodium-cooled is derived from sodiums is derived from stannide of sodium is derived from telluret of sodium is derived from trisodium