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单词 dextral
释义

dextraladj.n.

/ˈdɛkstrəl/
Etymology: < Latin dextra right hand + -al suffix1. Late Latin has dextrālis, dextrāle as nouns.
1.
a. Situated on the right side of the body; right, as opposed to left.
ΘΚΠ
the world > space > relative position > quality of having sides or being a side > [adjective] > situated at the side > right
right1489
dexter1562
right hand1587
dexterous1646
dextral1646
offward1710
right-sided1829
society > communication > indication > insignia > heraldic devices collective > escutcheon or shield > [adjective] > dexter
dexter1562
dexterous1646
dextral1646
1646 Sir T. Browne Pseudodoxia Epidemica iv. v. 188 Which should hinder the Liver from enabling the dextrall parts. View more context for this quotation
1794 T. J. Mathias Pursuits of Lit. iv. 452 Throw wide that portal; let no Roman wait, But march with Priestly through the dextral gate.
b. Of omens: Auspicious, favourable. Obsolete.
ΘΚΠ
the mind > mental capacity > expectation > hope > promise, ground of hope > [adjective] > of circumstances: propitious
trine1477
towardly1520
bright1592
ominous1593
dexter1646
rosy1685
dextral1774
fairc1820
toward1850
the mind > mental capacity > expectation > foresight, foreknowledge > prediction, foretelling > an omen, sign, portent > [adjective] > of good omen
luckyc1450
benefic1601
well-boding1603
auspicial1614
auspicious1614
benevolous1642
dexter1646
benefical1647
auspical1656
well-omened1720
promissory1732
auspicatory1734
dextral1774
1774 Poetry in Ann. Reg. 203 No eastern meteor glar'd beneath the sky, No dextral omen.
c. That uses the right hand in preference to the left; right-handed: see dextrality n. 2. Hence as n., a (predominantly) right-handed person.
ΘΚΠ
the world > life > the body > external parts of body > limb > [adjective] > favouring one side
right-handeda1398
left-handeda1425
left hand1440
left-legged1606
sinister1818
katy-handed1822
left-footed1832
right-sided1850
cack-handed1854
dextral1871
sinistral1871
left-sided1875
lefty1886
southpaw1886
handed1910
molly-dook1941
the world > life > the body > external parts of body > limb > [noun] > favouring one side > person
ciotóg1832
left-footer1864
right-footer1864
southpaw1871
right-hander1885
sinistral1889
port-sider1899
molly-hander1911
molly-dook1922
dextral1927
lefty1927
cuddy wifter1929
molly-dooker1934
northpaw1960
1871 Lancet i. 49 On Dextral Pre-eminence by William Ogle M.D.
1904 Westm. Gaz. 6 Aug. 11/3 As if fate had chosen to make it a dextral child.
1927 Amer. Jrnl. Psychol. 38 327 People fall into four groups, pure or crossed dextrals, and pure or crossed sinistrals... In the pure dextral there is right-handedness and a dominant right eye.
1964 M. Critchley Developmental Dyslexia viii. 54 A fair number of dyslexics are unequivocal dextrals with no family history of left-handedness or ambidexterity.
2. Conchology. Of a gastropod shell: Having the spire or whorl ascending from left to right (i.e. of the external spectator), which is the prevalent form.
ΚΠ
1847 J. Craig New Universal Dict. (at cited word) A dextral shell, as in mostly all univalves, has its turns or convolutions from left to right when placed in a perpendicular position.
1851 T. Wright & G. F. Richardson Introd. Geol. (new ed.) viii. 241 In the first instance the shell is termed dextral; in the latter it is called sinistral or reversed.
1851 S. P. Woodward Man. Mollusca i. 46 Left-handed, or reversed varieties of spiral shells have been met with in some of the very common species, like the whelk and garden-snail. Bulimus citrinus is as often sinistral as dextral.
1866 R. Tate Plain & Easy Acct. Mollusks Great Brit. iii. 45 When the aperture of the shell is on the right-hand side it is said to be dextral.

Draft additions December 2019

Geology. Designating a strike-slip fault in which the displacement of the block on the further side of the fault from an observer is towards the right; of or relating to such a fault. Contrasted with sinistral.
ΚΠ
1942 E. M. Anderson Dynamics of Faulting & Dyke Formation v. 55 E. E. L. Dixon has distinguished the types of displacement as right-hand and left-hand heaves... The two classes of fault-planes may well be termed ‘dextral’ and ‘sinistral’.
1990 P. Kearey & F. J. Vine Global Tectonics vii. 118 This dextral ridge-ridge transform connects to the northernmost part of the mid-Atlantic ridge in the Arctic.
2007 L. A. Spalletti & J. R. Franzese in Z. Gasparini et al. Patagonian Mesozoic Reptiles ii. 31 Before 180 Ma, dextral movement along the Gastre fault and the Deseado fault systems..brought the three segments of South America together.
This entry has not yet been fully updated (first published 1895; most recently modified version published online December 2019).
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adj.n.1646
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