primordial
UK /pɹaɪˈmɔː.di.əl/ · US /pɹaɪˈmɔɹ.di.əl/ adjective, noun
Forms primordials
- adjective First, earliest or original.
- adjective (biology) Characteristic of the earliest stage of the development of an organism, or relating to a primordium. “a primordial leaf; a primordial cell”
- adjective Primeval.
- adjective Of an element or isotope: occurring primordially (on Earth) (i.e. inherited from when the Earth was formed); because it is stable, or radioactive but so long-lived that some is left over from when the Earth was formed. For example, primordial radioisotopes (T = half-life in years) include uranium-235 (T = 7×10⁸), potassium-40 (T = 1.25×10⁹), uranium-238 (T = 4.5×10⁹), and thorium-232 (T = 1.4×10¹⁰).
- noun A first principle or element.
- noun A primordial condition or state.
Synonyms
Etymology
From the Latin prīmōrdiālis (“of the beginning”). Compare primordium and -al.
Webster’s 1913
- adjective First in order; primary; original; of earliest origin; as, primordial condition. "The primordial facts of our intelligent nature." Sir W. Hamilton.
- adjective Of or pertaining to the lowest beds of the Silurian age, corresponding to the Acadian and Potsdam periods in American geology.
- noun A first principle or element.
Etymology [L. primordialis, from primordium the first beginning; primus first + ordiri to begin a web, to begin: cf. F. primordial.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “primordial”, CC BY-SA 4.0. Details