Strong Concise Dictionary Of The Words In The Hebrew Bible
H5153נָחוּשׁnâchûwsh; apparently passive participle of 5172 (perhaps in the sense of ringing), i.e. bell-metal; or from the red color of the throat of a serpent (5175, as denominative) when hissing); coppery, i.e. (figuratively) hard — of brass.