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sidero-

1
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a combining form meaning “iron,” used in the formation of compound words: siderolite.
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Also especially before a vowel, sider- .

Origin of sidero-

1
<Greek sidēro-, combining form of sídēros iron

Other definitions for sidero- (2 of 2)

sidero-2

a combining form meaning “star,” “constellation,” used in the formation of compound words: siderostat.

Origin of sidero-

2
<Latin sīder- (stem of sīdus) star-group + -o-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

British Dictionary definitions for sidero-

sidero-

before a vowel sider-


combining form
indicating ironsiderolite

Word Origin for sidero-

from Greek sidēros
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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