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单词 epicentral
释义

epicentraln.adj.

Brit. /ˌɛpᵻˈsɛntr(ə)l/, U.S. /ˌɛpəˈsɛntrəl/
Origin: Formed within English, by derivation. Etymons: epi- prefix, central adj.
Etymology: < epi- prefix + central adj. With use as noun and sense B. 1 compare centrum n. In sense B. 2 after epicentrum n.
A. n.
Zoology. In a teleostean fish: a bone, cartilage, or ligament attached to a vertebra (often to the centrum) and located in the horizontal septum which divides the myotomes.
ΘΚΠ
the world > animals > fish > parts of fish > [noun] > bones (various types of)
grate1481
pharyngeal1791
suboperculum1818
supratemporal1834
shackle-joint1837
mastoid1840
wrist1840
mastoid bone1841
subopercular1841
mesotympanic1846
suprascapula1846
hypobranchials1848
hypotympanic1848
urohyal1848
radius1854
epicentral1866
pterotic1866
mesocoracoid1868
supraclavicle1868
precoracoid1869
symplectic1870
hypural1871
mesopterygoid1871
post-temporal1871
postclavicle1872
brachial1873
urostyle1875
hypercoracoid1876
admaxillary1885
intercalarium1887
palatopterygoquadrate1888
subtectal1888
Weberian apparatus1889
Weberian ossicles1889
radial1890
supracleithrum1903
1866 R. Owen On Anat. Vertebr. I. 43 These ‘scleral’ spines [of fishes] are termed, according to the vertebral element they may adhere to, ‘epineurals’, ‘epicentrals’, and ‘epipleurals’.
1888 Proc. 36th Meeting Amer. Assoc. Advancem. Sci. 259 The apex of the cartilage is anterior to and slightly overlaps the distal extremity of the epicentral belonging to the segment in which the cartilage is developed.
1965 Copeia No. 4. 460 There is an increase in size from the first to the third epicentral.
1995 C. Patterson & G. D. Johnson Intermuscular Bones & Ligaments Teleostean Fishes 2/1 When all three series of intermuscular bones are present, as in Clupea, discriminating them is easy, and the horizontal septum (containing the epicentrals) is a useful criterion.
2003 Proc. Royal Soc. B. 270 s3/2 Various protacanthopterygians have rod-like cartilaginous epicentrals in the horizontal septum.
B. adj.
1. Zoology. Of the nature of an epicentral. Also: designating a series of epicentrals.
ΚΠ
1866 R. Owen On Anat. Vertebr. I. 43 In Esox and Thymallus the epineural and epicentral spines are present.
1893 University of Pennsylvania Bull. June 8/1 The arrangement of the epineural, epipleural and epicentral series of bones were traced in connection with the ventral plates.
1962 Bull. Brit. Mus. (Nat. Hist.): Geol. 5 8 Faint traces of epineural and epicentral bones can be detected in two specimens.
1995 C. Patterson & G. D. Johnson Intermuscular Bones & Ligaments Teleostean Fishes 3/1 When a teleost appears to lack one of the three series of intermuscular bones, that series (most commonly the epicentral series) may be represented by ligaments alone.
2004 Copeia No. 4. 754/2 The anteroventral tips of the epineurals of vertebrae 3–8 are attached to the corresponding rib by means of the epicentral ligament.
2. Seismology. Of or relating to the epicentre of an earthquake. epicentral distance n. the distance of an earthquake's epicentre from a particular seismographic station.
ΘΚΠ
the world > the earth > structure of the earth > formation of features > convulsion > [adjective] > earthquake > epicentre or epifocus
epicentral1887
epifocal1898
1887 Science 21 Jan. 51/2 The data relating to the epicentral localities and their immediate neighborhood are quite full, and it is expected they will prove instructive and suggestive.
1903 Tokyo Sugaku-butsurigakkwai Hokoku 2 151 The transit velocity has been determined according to the formula where v and V represent the respective transit velocities..and d the epicentral distance.
1962 N.Z. Jrnl. Geol. & Geophysics 5 865 The Benioff seismographs yielded many records of small earthquakes having epicentral distances up to about 400 km.
1983 New Scientist 20 Oct. 171/2 In 1926 he [sc. C. Davison] moved the epicentre of an earthquake to lie under Hereford despite the unequivocal epicentral damage to houses 40 km to the north.
2012 Brownsville (Texas) Herald 22 Apr. b10/2 The epicentral area of the massive earthquake was estimated to be in areas off northern Sanriku.
This entry has been updated (OED Third Edition, March 2016; most recently modified version published online March 2022).
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n.adj.1866
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