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archaeanenUK
Ar·chae·an A0403700 (är-kē′ən)adj. Variant of Archean.archaean (ɑːˈkɪən) n (Biology) any member of the Archaea, a domain of prokaryotic microorganisms, distinguished from bacteria on molecular phylogenetic grounds and often found in hostile environments, such as volcanic vents and hot springs
Archaean (ɑːˈkiːən) or Archeanadj (Geological Science) of or relating to the highly metamorphosed rocks formed in the early Precambrian eran (Geological Science) the earlier of two divisions of the Precambrian era, during which the earliest forms of life are assumed to have appearedThesaurus| Adj. | 1. | archaean - of or relating to the earliest known rocks formed during the Precambrian Eonarcheangeology - a science that deals with the history of the earth as recorded in rocksearly - at or near the beginning of a period of time or course of events or before the usual or expected time; "early morning"; "an early warning"; "early diagnosis"; "an early death"; "took early retirement"; "an early spring"; "early varieties of peas and tomatoes mature before most standard varieties" |
MedicalSeeArchaeaarchaeanenUK
Synonyms for archaeanadj of or relating to the earliest known rocks formed during the Precambrian EonSynonymsRelated Words |