Term: promethium: a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium
Broader: substance: the real physical matter of which a person or thing consists | Unrelated: zinger: a striking or amusing or caustic remark
Broader: substance: the real physical matter of which a person or thing consists | Unrelated: damaraland mole rat: colonial mole rat of western Africa; similar to naked mole rat
Broader: substance: the real physical matter of which a person or thing consists | Unrelated: north: the direction corresponding to the northward cardinal compass point
Broader: substance: the real physical matter of which a person or thing consists | Unrelated: hope chest: chest for storage of clothing (trousseau) and household goods in anticipation of marriage
Broader: substance: the real physical matter of which a person or thing consists | Unrelated: captain: the pilot in charge of an airship
Broader: substance: the real physical matter of which a person or thing consists | Unrelated: penpusher: a clerk who does boring paperwork
Broader: substance: the real physical matter of which a person or thing consists | Unrelated: rank: relative status
Broader: substance: the real physical matter of which a person or thing consists | Unrelated: sedan: a car that is closed and that has front and rear seats and two or four doors
Broader: substance: the real physical matter of which a person or thing consists | Unrelated: trumpeter: a musician who plays the trumpet or cornet
Broader: substance: the real physical matter of which a person or thing consists | Unrelated: avarice: extreme greed for material wealth