sinistradadv.adj.

Brit.

/ˈsɪnᵻstrad/, U.S.

/ˈsɪnəˌstræd/,

/səˈnɪˌstræd/

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin sinistra , -ad suffix².

Etymology: < classical Latin sinistra left hand, use as noun (short for manus sinistra left hand) of feminine of sinister sinister adj. + -ad suffix². Compare dextrad adv. and adj.

Chiefly Anatomy and Zoology.

A. adv.

To or towards the left side; to the left of (a line, plane, etc.). Contrasted with dextrad adv. and adj.

ΘΚΠ

the world > life > the body > positions or directions in body > [adverb] > specific

upwardsc1400

posteriorly1598

centrad1803

dextrad1803

distad1803

peripherad1803

proximad1803

sinistrad1803

atlantad1825

rostrad1831

mesially1849

ventrad1849

peripherally1852

posterolaterally1857

rostrally1863

distally1870

medianly1870

ventrally1870

postaxially1873

preaxially1873

posteroventrally1877

proximally1878

mesad1881

lateralwards1882

ventralwards1883

preaxiad1888

mesally1890

anteriad1891

haemad1891

postaxiad1892

lateralward1895

sagittally1895

ventral1899

posteriad1902

ipsilaterally1950

midsagittally1960

ventromedially1960

1803 J. Barclay New Anat. Nomencl. 166 In the head and trunk,..Sinistrad will signify towards the sinistral [aspect].

1885 A. H. Buck Ref. Handbk. Med. Sci. VIII. 109 The section-plane..passed just sinistrad of the meson.

1922 Trans. Amer. Entomol. Soc. 47 128 These [hairs] directed distad, with distal portions..curving sinistrad.

2004 Jrnl. Parasitol. 90 1415/1 Proximal portion of ejaculatory duct laterally expanded if filled with sperm..extending sinistrad a short distance before opening near base of penis.

B. adj.

Directed or moving towards the left. Contrasted with dextrad adv. and adj.

ΚΠ

1808 J. Barclay Muscular Motions 567 The aspect of the base [of the heart] is atlantad and dextrad, and that of the apex sinistrad and sacrad.

1851 H. Mayo On Truths Pop. Superstitions (ed. 2) 204 Those [oscillations] obtainable over any part of the transverse diameter are sinistrad.

1904 Jrnl. Amer. Med. Assoc. 4 June 1515/1 If it is sinistrad, the axis of the dominant eye will usually be about 105.

1959 Amer. Midland Naturalist 61 200 The sinus..then forms a slight sinistrad arc to the caudal face.

2002 Korean Jrnl. Radiol. 3 126/1 A second operation disclosed the presence of fungating intradural mass which caused sinistrad displacement of the cauda equina and conus.

This entry has been updated (OED Third Edition, December 2019; most recently modified version published online March 2022).

单词	sinistrad
释义	sinistradadv.adj. Brit. /ˈsɪnᵻstrad/, U.S. /ˈsɪnəˌstræd/, /səˈnɪˌstræd/ Origin: A borrowing from Latin, combined with an English element. Etymons: Latin sinistra , -ad suffix². Etymology: < classical Latin sinistra left hand, use as noun (short for manus sinistra left hand) of feminine of sinister sinister adj. + -ad suffix². Compare dextrad adv. and adj. Chiefly Anatomy and Zoology. A. adv. To or towards the left side; to the left of (a line, plane, etc.). Contrasted with dextrad adv. and adj. ΘΚΠ the world > life > the body > positions or directions in body > [adverb] > specific upwardsc1400 posteriorly1598 centrad1803 dextrad1803 distad1803 peripherad1803 proximad1803 sinistrad1803 atlantad1825 rostrad1831 mesially1849 ventrad1849 peripherally1852 posterolaterally1857 rostrally1863 distally1870 medianly1870 ventrally1870 postaxially1873 preaxially1873 posteroventrally1877 proximally1878 mesad1881 lateralwards1882 ventralwards1883 preaxiad1888 mesally1890 anteriad1891 haemad1891 postaxiad1892 lateralward1895 sagittally1895 ventral1899 posteriad1902 ipsilaterally1950 midsagittally1960 ventromedially1960 1803 J. Barclay New Anat. Nomencl. 166 In the head and trunk,..Sinistrad will signify towards the sinistral [aspect]. 1885 A. H. Buck Ref. Handbk. Med. Sci. VIII. 109 The section-plane..passed just sinistrad of the meson. 1922 Trans. Amer. Entomol. Soc. 47 128 These [hairs] directed distad, with distal portions..curving sinistrad. 2004 Jrnl. Parasitol. 90 1415/1 Proximal portion of ejaculatory duct laterally expanded if filled with sperm..extending sinistrad a short distance before opening near base of penis. B. adj. Directed or moving towards the left. Contrasted with dextrad adv. and adj. ΚΠ 1808 J. Barclay Muscular Motions 567 The aspect of the base [of the heart] is atlantad and dextrad, and that of the apex sinistrad and sacrad. 1851 H. Mayo On Truths Pop. Superstitions (ed. 2) 204 Those [oscillations] obtainable over any part of the transverse diameter are sinistrad. 1904 Jrnl. Amer. Med. Assoc. 4 June 1515/1 If it is sinistrad, the axis of the dominant eye will usually be about 105. 1959 Amer. Midland Naturalist 61 200 The sinus..then forms a slight sinistrad arc to the caudal face. 2002 Korean Jrnl. Radiol. 3 126/1 A second operation disclosed the presence of fungating intradural mass which caused sinistrad displacement of the cauda equina and conus. This entry has been updated (OED Third Edition, December 2019; most recently modified version published online March 2022). < adv.adj.1803
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