SIDERO-


Meaning of SIDERO- in English

~ 1

■ combining form relating to the stars.

Origin

from L. sidus , sider- 'star'.

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~ 2

■ combining form relating to iron: siderophore.

Origin

from Gk sidēros 'iron'.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.