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sider-

1 of 2

combining form (1)

variants or sidero-
: iron
hemosiderin
siderolite

-sider

2 of 2

combining form (2)

-sid·​er
ˈsīd-ər
: one placed or living in a usually specified side (such as a section of the city)
an east-sider

Word History

Etymology

Combining form (1)

Greek sidēr-, sidēro-, from sidēros

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Cite this Entry

“Sider-.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sider-. Accessed 27 Nov. 2025.

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