Pacchionianadj.

Brit.

/pakɪˈəʊnɪən/, U.S.

/ˌpækiˈoʊniən/

Forms: 1800s– Pacchionian, 1800s– Pachionian (irregular). Also with lower-case initial.

Origin: From a proper name, combined with an English element. Etymons: proper name Pacchioni , -an suffix.

Etymology: < the name of Antonio Pacchioni (1665–1726), Italian anatomist who first described the bodies in his Dissertatio Epistolaris de Glandulis Conglobatis Durae Meningis Humanae (1705) + -an suffix. Compare post-classical Latin Pacchionius (1796 or earlier in glandulae Pacchioniae ; compare quot. 1807 for Pacchionian body n. at sense 1).

Anatomy.

1. Pacchionian body n. (also †Pacchionian gland, Pacchionian granulation) an arachnoid granulation.

ΘΚΠ

the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > [adjective] > other parts of brain

Pacchionian body1807

tubero-hypophyseal1962

tubero-infundibular1962

1807 R. Morris & J. Kendrick Edinb. Med. & Physical Dict. II Pachionian glands, see Glandulæ Pachioniæ [spelt Glandulæ Pacchioniæ s.v.].

1839–47 Todd's Cycl. Anat. & Physiol. III. 631/2 Several of the small bodies, previously alluded to by the name of Pacchionian glands, project into the cavity of the sinus.

1876 Jrnl. Anthropol. Inst. 5 150 The cranial bones are thick, and the pits for the Pacchionian bodies well developed.

1949 H. W. C. Vines Green's Man. Pathol. (ed. 17) xxxviii. 1074 From here it [sc. cerebrospinal fluid] is reabsorbed into the large veins..by means of the Pacchionian granulations or arachnoid villi which project into the walls of the venous channels.

1988 M. L. Barr & J. A. Kiernan Human Nerv. Syst. xxvi. 384/2 The arachnoid villi become hypertrophied with age, when they are called arachnoid granulations or pacchionian bodies.

2. Pacchionian depression n. (also †Pacchionian fossa) a small depression on the inner surface of the skull corresponding to the position of a Pacchionian body. Now rare.

ΚΠ

1859 Todd's Cycl. Anat. & Physiol. V. Index 834/1 Pacchionian fossæ.

1870 Philos. Trans. 1869 (Royal Soc.) 159 527 The pacchionian depressions are few and feebly marked.

1893 New Sydenham Soc. Lexicon at Pacchionian They [sc. Pacchionian bodies] increase in size as the years advance, passing through holes in the dura mater and projecting into the sinus or lying in the Pacchionian fossæ of the skull bones.

1901 Amer. Anthropologist 3 43 Study the sulci, pachionian depressions, meningeal grooves, digital impressions.

1938 Jrnl. Royal Anthropol. Inst. 68 60 Pacchionian depressions are only represented by two very small shallow pits alongside the anterior end of the sagittal suture.

This entry has been updated (OED Third Edition, March 2005; most recently modified version published online June 2022).

单词	pacchionian
释义	Pacchionianadj. Brit. /pakɪˈəʊnɪən/, U.S. /ˌpækiˈoʊniən/ Forms: 1800s– Pacchionian, 1800s– Pachionian (irregular). Also with lower-case initial. Origin: From a proper name, combined with an English element. Etymons: proper name Pacchioni , -an suffix. Etymology: < the name of Antonio Pacchioni (1665–1726), Italian anatomist who first described the bodies in his Dissertatio Epistolaris de Glandulis Conglobatis Durae Meningis Humanae (1705) + -an suffix. Compare post-classical Latin Pacchionius (1796 or earlier in glandulae Pacchioniae ; compare quot. 1807 for Pacchionian body n. at sense 1). Anatomy. 1. Pacchionian body n. (also †Pacchionian gland, Pacchionian granulation) an arachnoid granulation. ΘΚΠ the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > [adjective] > other parts of brain Pacchionian body1807 tubero-hypophyseal1962 tubero-infundibular1962 1807 R. Morris & J. Kendrick Edinb. Med. & Physical Dict. II Pachionian glands, see Glandulæ Pachioniæ [spelt Glandulæ Pacchioniæ s.v.]. 1839–47 Todd's Cycl. Anat. & Physiol. III. 631/2 Several of the small bodies, previously alluded to by the name of Pacchionian glands, project into the cavity of the sinus. 1876 Jrnl. Anthropol. Inst. 5 150 The cranial bones are thick, and the pits for the Pacchionian bodies well developed. 1949 H. W. C. Vines Green's Man. Pathol. (ed. 17) xxxviii. 1074 From here it [sc. cerebrospinal fluid] is reabsorbed into the large veins..by means of the Pacchionian granulations or arachnoid villi which project into the walls of the venous channels. 1988 M. L. Barr & J. A. Kiernan Human Nerv. Syst. xxvi. 384/2 The arachnoid villi become hypertrophied with age, when they are called arachnoid granulations or pacchionian bodies. 2. Pacchionian depression n. (also †Pacchionian fossa) a small depression on the inner surface of the skull corresponding to the position of a Pacchionian body. Now rare. ΚΠ 1859 Todd's Cycl. Anat. & Physiol. V. Index 834/1 Pacchionian fossæ. 1870 Philos. Trans. 1869 (Royal Soc.) 159 527 The pacchionian depressions are few and feebly marked. 1893 New Sydenham Soc. Lexicon at Pacchionian They [sc. Pacchionian bodies] increase in size as the years advance, passing through holes in the dura mater and projecting into the sinus or lying in the Pacchionian fossæ of the skull bones. 1901 Amer. Anthropologist 3 43 Study the sulci, pachionian depressions, meningeal grooves, digital impressions. 1938 Jrnl. Royal Anthropol. Inst. 68 60 Pacchionian depressions are only represented by two very small shallow pits alongside the anterior end of the sagittal suture. This entry has been updated (OED Third Edition, March 2005; most recently modified version published online June 2022). < adj.1807
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