Term: niobite: a black mineral that is an ore of niobium and tantalum
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: open letter: a letter of protest; addressed to one person but intended for the general public
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: old man: a man who is very old
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: gather: sewing consisting of small folds or puckers made by pulling tight a thread in a line of stitching
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: tanker: a soldier who drives a tank
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: quarter: a quarter of a hundredweight (25 pounds)
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: entertainment industry: those involved in providing entertainment: radio and television and films and theater
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: witch elm: Eurasian elm often planted as a shade tree
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: pine sawyer: large beetle whose larvae bore holes in pine trees
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: depravity: a corrupt or depraved or degenerate act or practice
Broader: mineral: solid homogeneous inorganic substances occurring in nature having a definite chemical composition | Unrelated: chukchi: an indigenous and isolated language of unknown origin spoken by the Chukchi that is pronounced differently by men and women