Lexipedia - Where words have meaning

Archeozoic, Archaeozoic era, Archeozoic era

n. the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life

Archeozoic

adj. formed in the earlier of two divisions of the Precambrian era; "archeozoic life forms"

original, primitive, aboriginal, primal, primeval, primaeval, primordial

adj. having existed from the beginning; in an earliest or original stage or state; "aboriginal forests"; "primal eras before the appearance of life on earth"; "the forest primeval"; "primordial matter"; "primordial forms of life"

advance, in advance, beforehand, beforetime

adj. situated ahead or going before; "an advance party"; "at that time the most advanced outpost was still east of the Rockies"

Archean, Archaean

adj. used of the earliest known rocks

azoic

adj. before the appearance of life; "azoic rocks contain not organic remains"

earlyish

adj. being somewhat early; "at an earlyish hour"

matutinal

adj. pertaining to or occurring in the morning; "took his matutinal walk"

premature, untimely

adj. uncommonly early or before the expected time; "illness led to his premature death"; "alcohol brought him to an untimely end"

Proterozoic

adj. formed in the later of two divisions of the Precambrian era; "proterozoic life forms"

proto

adj. indicating the first or earliest or original; "`proto' is a combining form in a word like `protolanguage' that refers to the hypothetical ancestor of another language or group of languages"

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