atomic_number_77 (HyperDic hyper-dictionary)

English > 1 sense of the expression *atomic number 77*:
NOUN	substance	atomic number 77, iridium, Ir	a heavy brittle / brittle metallic element of the platinum group

English > *atomic number 77*: 1 sense > noun 1, substance
Meaning	A heavy brittle / brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium.
Synonyms	iridium, Ir
Broader	metallic element, metal	Any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
Spanish	iridio, número atómico 77
Catalan	iridi, Ir, número atòmic 77

HyperDic: atomic_number_77