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Of equal age, duration, or period; coeval.

[From Late Latin coaetāneus, a contemporary : Latin co-, co- + Latin aetās, age; see aiw- in Indo-European roots.]

co′e·ta′ne·ous·ly adv.


rare of the same age or period
[C17: from Latin coaetāneus, from co- same + aetās age]
ˌcoeˈtaneously adv
ˌcoeˈtaneousness n


(ˌkoʊ ɪˈteɪ ni əs)

of the same age or duration.
[1600–10; < Latin coaetāneus <co- co- + aet(ās) age]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.coetaneous - of the same period
synchronal, synchronic, synchronous - occurring or existing at the same time or having the same period or phase; "recovery was synchronous with therapy"- Jour.A.M.A.; "a synchronous set of clocks"; "the synchronous action of a bird's wings in flight"; "synchronous oscillations"


Belonging to the same period of time as another:
References in classic literature ?
Bear with these distractions, with this coetaneous growth of the parts; they will one day be members, and obey one will.
Impuesto shows that the use of cruelty against women is coetaneous with all these complex links.
From Portugal's standpoint, the idea of the relocation of the court to Brazil was coetaneous with the European irruption in the Americas, as historians and critics such as Kirsten Schultz and Laurentino Gomes have shown.
However, for other coetaneous authors such controversy does not exist.
After a full reconstruction of the Aristotelian ideal and worldview prior to Galileo's telescope, Garcia Santo-Tomas shows how traditional preconceptions and religious beliefs guided coetaneous Spanish authors against the discoveries of the nuova scienza in Spain.
Obese patients have larger skins folds and sweat more profusely after becoming overheated because of thick layers of sub coetaneous fat, thereby increasing both the frictional and moisture components.
Moran [sup][17] recommend open technique while passing distal interlocking screw from the lateral aspect of the humerus to avoid injury to the radial nerve and posterior coetaneous nerve of forearm.
A variety of factors have been identified as predictors of relapse in SLE like renal disease, high disease activity, neurological disease, coetaneous vasculitis, persistently high anti-DNA antibodies and hypocomplementemia.
Clinical manifestations of NLE involve cardiac, dermatological, hepatic, hematologic and nervous systems, of which coetaneous manifestations are the most common.
2015), Lano is noteworthy by its taxonomic diversity: the late Campanian to early Maastrichtian fluvial beds (probably coetaneous to the wetland deposits of Lo Hueco) have yielded a large collection of bones and teeth, including abundant microfossils.