Archaikum

== German == === Etymology === Learned borrowing from New Latin Archaicum. === Pronunciation === IPA(key): /aʁˈçaːikʊm/ === Proper noun === Archaikum n (proper noun, strong, genitive Archaikums) the Archaean Synonym: Archäozoikum ==== Declension ==== === See also === Eoarchaikum Paläoarchaikum Mesoarchaikum Neoarchaikum Präkambrium Hadaikum/Präarchaikum Proterozoikum