heterochronousadj.

Etymology: formed as heterochronic adj. + -ous suffix.Previous versions of the OED give the stress as: heteˈrochronous.

a. Pathology. = heterochronic adj.

ΘΚΠ

the world > time > frequency > infrequency > [adjective] > intermittent or irregular

chopping1483

wavering1488

interpolate1547

suspensive1575

off and on1583

remitting1583

intermissive1586

fluttering1590

aguisha1602

intermittent1603

irregular1608

broken1629

intermitting1643

serratile1707

serrine1707

scattering1709

serratic1753

now-and-then1762

remittent1791

fitful1810

non-periodic1836

spasmodic1837

startful1837

interlusory1853

heterochronic1854

heterochronous1854

between-whiles1859

snatchy1861

sporadic1861

spasmodical1864

catchy1869

pauseful1877

aperiodic1879

scratchy1881

nervy1884

spurty1894

off-again on-again1923

on-again off-again1946

on-off1949

1854 R. G. Mayne Expos. Lexicon Med. Sci. (1860) , Heterochronicus Heterochronus..heterochronic: heterochronous: applied to the pulse.

b. Palaeontology. [ < German heterochron (E. Mojsisovics Die Cephalopoden der Hallstätter Kalke (1893) II. 5).] Originating or formed at different periods.

ΘΚΠ

the world > life > biology > organism > fossil > [adjective] > types of

rayed1713

coprolitic1829

belemnitic1847

goniatitic1884

trochitic1891

heterochronous1895

Ediacarian1972

ceratitic1976

1895 S. S. Buckman in Q. Jrnl. Geol. Soc. LI. 457 Mojsisovics has called such cases, between non-contemporaneous ammonites, ‘heterochronous convergence’. I would rather apply the term ‘heterochronous homœomorphy’ to the phenomenon; and the term ‘isochronous homœomorphy’ would describe the resemblance between the contemporaneous Buckmani with its derivatives.

1913 Q. Jrnl. Geol. Soc. 69 166 Isochronous and heterochronous homœomorphy state whether the homœomorphous species lived in the same or at different times.

1952 R. C. Moore et al. Invertebr. Fossils vi. 218 The other category includes two or more shells of different geologic age, in which one simulates the other. These are termed heterochronous homeomorphs.

This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2019).

单词	heterochronous
释义	heterochronousadj. Etymology: formed as heterochronic adj. + -ous suffix.Previous versions of the OED give the stress as: heteˈrochronous. a. Pathology. = heterochronic adj. ΘΚΠ the world > time > frequency > infrequency > [adjective] > intermittent or irregular chopping1483 wavering1488 interpolate1547 suspensive1575 off and on1583 remitting1583 intermissive1586 fluttering1590 aguisha1602 intermittent1603 irregular1608 broken1629 intermitting1643 serratile1707 serrine1707 scattering1709 serratic1753 now-and-then1762 remittent1791 fitful1810 non-periodic1836 spasmodic1837 startful1837 interlusory1853 heterochronic1854 heterochronous1854 between-whiles1859 snatchy1861 sporadic1861 spasmodical1864 catchy1869 pauseful1877 aperiodic1879 scratchy1881 nervy1884 spurty1894 off-again on-again1923 on-again off-again1946 on-off1949 1854 R. G. Mayne Expos. Lexicon Med. Sci. (1860) , Heterochronicus Heterochronus..heterochronic: heterochronous: applied to the pulse. b. Palaeontology. [ < German heterochron (E. Mojsisovics Die Cephalopoden der Hallstätter Kalke (1893) II. 5).] Originating or formed at different periods. ΘΚΠ the world > life > biology > organism > fossil > [adjective] > types of rayed1713 coprolitic1829 belemnitic1847 goniatitic1884 trochitic1891 heterochronous1895 Ediacarian1972 ceratitic1976 1895 S. S. Buckman in Q. Jrnl. Geol. Soc. LI. 457 Mojsisovics has called such cases, between non-contemporaneous ammonites, ‘heterochronous convergence’. I would rather apply the term ‘heterochronous homœomorphy’ to the phenomenon; and the term ‘isochronous homœomorphy’ would describe the resemblance between the contemporaneous Buckmani with its derivatives. 1913 Q. Jrnl. Geol. Soc. 69 166 Isochronous and heterochronous homœomorphy state whether the homœomorphous species lived in the same or at different times. 1952 R. C. Moore et al. Invertebr. Fossils vi. 218 The other category includes two or more shells of different geologic age, in which one simulates the other. These are termed heterochronous homeomorphs. This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2019). < adj.1854
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