BT Nid 36b(49) :אסיתא דנחשא דלא שליט בה רקבא‏ : a bronze mortar that corrosion does not effect
See the entire entry for nḥāš, nḥāšā n.m. bronze, copper

BT Nid 36b(49) :אסיתא דנחשא דלא שליט בה רקבא‏ : a bronze mortar that does not corrode
See the entire entry for rqeḇ, riqbā n.m. decay or rust