Existing or happening at the very beginning of time or before everything else; ancient and original.
From Latin 'primordialis'—'primus' (first) and 'ordiri' (to begin). It describes things from the earliest stages of existence, originally used in theology and philosophy about creation.
Scientists use 'primordial' to describe the universe 380,000 years after the Big Bang when it was cool enough for light to finally escape—the primordial universe was so hot and dense that nothing we know could have existed.
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