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 (ī-sŏk′rə-nəl) or i·soch·ro·nous (-nəs)
1. Equal in duration.
2. Characterized by or occurring at equal intervals of time.

[From New Latin īsochronus, from Greek īsokhronos : īso-, iso- + khronos, time.]

i·soch′ro·nal·ly adv.
i·soch′ro·nism n.


(aɪˈsɒkrənəl) or


1. having the same duration; equal in time
2. (General Physics) occurring at equal time intervals; having a uniform period of vibration or oscillation
[C17: from New Latin isochronus, from Greek isokhronos, from iso- + khronos time]
iˈsochronally, iˈsochronously adv
iˈsochroˌnism n


(aɪˈsɒk rə nl)

also i•soch′ro•nous,

1. equal or uniform in time.
2. performed in equal intervals of time.
3. characterized by motions or vibrations of equal duration.
[1670–80; < New Latin isochron(us) (< Greek isóchronos equal in age or time; see iso-, chrono-) + -al1]
i•soch′ro•nal•ly, adv.
i•soch′ro•nism, n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.isochronal - equal in duration or interval; "the oscillations were isochronal"
equal - having the same quantity, value, or measure as another; "on equal terms"; "all men are equal before the law"


Happening or appearing at regular intervals:
References in periodicals archive ?
Moreover, dielectric permittivity has been found to be related to crystallinity growth in both PET and PEN polymers [19], and the [[beta].sup.*] dielectric process in the copolymers (PEN/PET) has been found to shift to higher frequencies isothermally (or to lower temperatures isochronally), with increasing terephthalic acid content [20].
The duration of the ex situ anneal is critical because the acceptor complex [V.sub.Zn]-[N.sub.O]-[H.sup.+] can be isochronally reduced, depending on the annealing ambient, while defects contributing to n-type conductivity are reduced.
The tests were performed in the double cantilever mode, both isochronally (at 1 Hz), raising the temperature from 25[degrees]C to 200[degrees]C at 1[degree]C/min, and isothermally scanning the frequency between 0.1 and 30 Hz.