Meaning of sidero-

sidero-

Pronunciation: [key]
  1. a combining form meaning “iron,” used in the formation of compound words: siderolite.

sidero-

Pronunciation: [key]
  1. a combining form meaning “star,” “constellation,” used in the formation of compound words: siderostat.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.