a silvery-white, brittle, nonmetallic chemical element of crystalline structure, found only in combination: used in alloys with metals to harden them and increase their resistance to chemical action; compounds of antimony are used in medicines, pigments, and matches, and for fireproofing: symbol, Sb; at. no. 51
Origin of antimonyMiddle English antimonie ; from Old French antimoine ; from Medieval Latin antimonium ; from uncertain or unknown; perhaps Arabic al ithmid, antimony ; from Classical Greek stimi (from source Classical Latin stibium) ; from Coptic st?m ; from Egyptian sdmt, origin, originally , mixture used to protect the eyes from flies
A metallic element having two allotropic forms: a hard, extremely brittle, lustrous, bluish-white, crystalline material and a gray amorphous form. It is used in a wide variety of alloys, especially with lead in battery plates, and in the manufacture of flame-proofing compounds, paint, semiconductor devices, and ceramic products. Atomic number 51; atomic weight 121.76; melting point 630.63°C; boiling point 1,587°C; specific gravity 6.68; valence 3, 5. See Periodic Table.
Origin of antimonyMiddle English antimonie, from Medieval Latin antim&omacron;nium, perhaps from Arabic al-’i&tlowmac;mid : al-, the + ’i&tlowmac;mid, antimony (perhaps from Greek stimmi; see stibine).
- Do not confuse antimony with antinomy.
From Medieval Latin antimonium attested in the eleventh century; see also here.