Term: basic iron: pig iron containing a high percentage of phosphorus; used in making steel by a process that removes the phosphorus
Broader: chemical element: any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter | Unrelated: hunkpapa: a member of the Siouan people who constituted a division of the Teton Sioux and who formerly lived in the western Dakotas; they were prominent in resisting the white encroachment into the northern Great Plains
Broader: chemical element: any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter | Unrelated: quantum: a discrete amount of something that is analogous to the quantities in quantum theory