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sider-
sidereal
sidereal day
sidereal hour
sidereal month
sidereal period
sidereal time
sidereal year
siderite
sidero-
sideroad
siderolite
siderophilin
siderosis
siderostat
sidesaddle
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siderite
sid·er·ite [ síddə rt ] (plural sid·er·ites)


noun 
Definition:
 
1. ore of iron: a yellow-brown mineral consisting of iron carbonate. Source: sedimentary rocks. Use: source of iron.
2. meteorite: a dense metallic meteorite, chiefly iron alloyed with nickel
[Late 18th century. < Greek sidēros "iron"]

sid·er·it·ic [ sìddə ríttik ] adjective
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