| a combining form meaning “iron,” used in the formation of compound words: siderolite. |
| a combining form meaning “star,” “constellation,” used in the formation of compound words: siderostat. |
| sidero- or sider- pref. Iron: siderolite. [Greek sidēro-, from sidēros, iron.] |
sidero- or sider-
pref.
Iron: sideropenia.