ALL meanings of cobalt
co·balt
C c - uncountable noun cobalt Cobalt is a hard silvery-white metal which is used to harden steel and for producing a blue dye. 3
- colour cobalt Cobalt or cobalt blue is a deep-blue colour. 3
- noun cobalt a brittle hard silvery-white element that is a ferromagnetic metal: occurs principally in cobaltite and smaltite and is widely used in alloys. The radioisotope cobalt-60, with a half-life of 5.3 years, is used in radiotherapy and as a tracer. Symbol: Co; atomic no: 27; atomic wt: 58.93320; valency: 2 or 3; relative density: 8.9; melting pt: 1495°C; boiling pt: 2928°C 3
- noun cobalt a hard, lustrous, steel-gray, ductile, metallic chemical element, found in various ores: it is used in the preparation of magnetic, wear-resistant, and high-strength alloys: its compounds are used in the production of inks, paints, and varnishes: symbol, Co; at. no., 27: a radioactive isotope (cobalt-60) is used in the treatment of cancer, in research, etc. 3
- noun cobalt a silver-white metallic element with a faint pinkish tinge, occurring in compounds whose silicates afford important blue coloring substances for ceramics. Symbol: Co; atomic weight: 58.933; atomic number: 27; specific gravity: 8.9 at 20°C. 1
- noun cobalt The chemical element of atomic number 27, a hard silvery-white magnetic metal. 1
- noun cobalt metallic element 1
- noun cobalt blue pigment 1
- adjective cobalt pigment: cobalt-based 1
- noun cobalt A chemical element (symbol Co) with an atomic number of 27. 0
- noun cobalt Cobalt blue. 0