caseationn.

Brit.

/ˌkeɪsɪˈeɪʃn/, U.S.

/ˌkeɪsiˈeɪʃ(ə)n/,

/ˌkeɪziˈeɪʃ(ə)n/

Forms: late Middle English caseacioun, 1800s– caseation.

Origin: A borrowing from Latin. Etymons: Latin caseation-, caseatio.

Etymology: < post-classical Latin caseation-, caseatio curdling of milk, conversion of milk into cheese (1363 in Chauliac; compare quot. ?a1425 at sense 1) < classical Latin cāseātus mixed with cheese (2nd cent. a.d. in Apuleius; < cāseus cheese (see caseous adj.) + -ātus -ate suffix²) + -iō -ion suffix¹; compare -ation suffix. In sense 2 perhaps after German Verkäsung (1862 or earlier in medical use; 18th cent. or earlier in sense 1).Compare French caséation (1771 or earlier in sense 1; 1873 or earlier in sense 2, apparently after English).

†1. Coagulation or curdling of milk; conversion of milk into cheese. Obsolete. rare.

ΘΚΠ

the world > food and drink > food > dairy produce > [noun] > milk > curds > curdling

welling1371

caseation?a1425

quailing1440

curdling1585

cailling1601

tyrosis1684

?a1425 tr. Guy de Chauliac Grande Chirurgie (N.Y. Acad. Med.) f. 45^v (MED) Apostemez of þe pappez: som bene propre, som similitudinariez, i. likly, as caseacioun [L. caseacio] i. chesyng or cruddyng of milke.

1848 J. Craig New Universal Dict. Caseation,..the coagulation of milk; the action whereby its caseous portion is converted into cheese.

1852 D. S. Evans Eng. & Welsh Dict. I. 245/1 Caseation, cawsiad, cawseiddiad.

2. Medicine. Conversion of tissue into an amorphous necrotic mass resembling cheese in colour and consistency; the pathological process resulting in this, occurring esp. in tuberculosis and other mycobacterial infections; an instance of this. Also (concrete): necrotic tissue of this nature; caseous material.

ΘΚΠ

the world > health and disease > ill health > a disease > diseases of tissue > [noun] > alteration of tissue > necrosis > types of

fever sore1731

white gangrene1753

hospital ulcer1799

hospital gangrene1813

mildew-mortification1817

caseation1868

phosphorus necrosis1869

gaseous gangrene1882

coagulation necrosis1883

phossy jaw1889

phos1892

gas gangrene1896

1868 Lancet 11 Apr. 483/1 In the process of miliary deposit, the first step may be somewhat allied to, if not identical with, caseation of the inflammatory product in lymphatic glands, as stated by some of the continental authorities.

1889 Ann. Surg. 10 404 Delay is less excusable if there is evidence of caseation taking place in the affected joint.

1918 F. L. Hoffman Mortality Respiratory Dis. Dusty Trades 338 Even years subsequent to working underground, the expectoration may have at times a bluish black discoloration, especially when there is a caseation and necrosis of the lung tissue.

1927 H. T. Lowe-Porter tr. T. Mann Magic Mountain (London ed.) II. vi. 546 Of the breaking-down of the tissues, of caseation, and the question whether the disease would be arrested by a chalky petrefaction and heal by means of fibrosis.

1986 J. F. Gracey Meat Hygiene (ed. 8) xv. 354/1 The caseous material visible on section of the node may..at times present a marbled or radiating appearance due to thin isolated radiating lines of caseation alternating with areas of normal lymph node tissue.

2009 G. C. Cook & A. I. Zumla Manson's Trop. Dis. (ed. 22) lviii. 1057/2 Nerves may become difficult to recognize [in tuberculoid leprosy], and occasionally nerves undergo caseation.

This entry has been updated (OED Third Edition, September 2014; most recently modified version published online December 2021).

单词	caseation
释义	caseationn. Brit. /ˌkeɪsɪˈeɪʃn/, U.S. /ˌkeɪsiˈeɪʃ(ə)n/, /ˌkeɪziˈeɪʃ(ə)n/ Forms: late Middle English caseacioun, 1800s– caseation. Origin: A borrowing from Latin. Etymons: Latin caseation-, caseatio. Etymology: < post-classical Latin caseation-, caseatio curdling of milk, conversion of milk into cheese (1363 in Chauliac; compare quot. ?a1425 at sense 1) < classical Latin cāseātus mixed with cheese (2nd cent. a.d. in Apuleius; < cāseus cheese (see caseous adj.) + -ātus -ate suffix²) + -iō -ion suffix¹; compare -ation suffix. In sense 2 perhaps after German Verkäsung (1862 or earlier in medical use; 18th cent. or earlier in sense 1).Compare French caséation (1771 or earlier in sense 1; 1873 or earlier in sense 2, apparently after English). †1. Coagulation or curdling of milk; conversion of milk into cheese. Obsolete. rare. ΘΚΠ the world > food and drink > food > dairy produce > [noun] > milk > curds > curdling welling1371 caseation?a1425 quailing1440 curdling1585 cailling1601 tyrosis1684 ?a1425 tr. Guy de Chauliac Grande Chirurgie (N.Y. Acad. Med.) f. 45^v (MED) Apostemez of þe pappez: som bene propre, som similitudinariez, i. likly, as caseacioun [L. caseacio] i. chesyng or cruddyng of milke. 1848 J. Craig New Universal Dict. Caseation,..the coagulation of milk; the action whereby its caseous portion is converted into cheese. 1852 D. S. Evans Eng. & Welsh Dict. I. 245/1 Caseation, cawsiad, cawseiddiad. 2. Medicine. Conversion of tissue into an amorphous necrotic mass resembling cheese in colour and consistency; the pathological process resulting in this, occurring esp. in tuberculosis and other mycobacterial infections; an instance of this. Also (concrete): necrotic tissue of this nature; caseous material. ΘΚΠ the world > health and disease > ill health > a disease > diseases of tissue > [noun] > alteration of tissue > necrosis > types of fever sore1731 white gangrene1753 hospital ulcer1799 hospital gangrene1813 mildew-mortification1817 caseation1868 phosphorus necrosis1869 gaseous gangrene1882 coagulation necrosis1883 phossy jaw1889 phos1892 gas gangrene1896 1868 Lancet 11 Apr. 483/1 In the process of miliary deposit, the first step may be somewhat allied to, if not identical with, caseation of the inflammatory product in lymphatic glands, as stated by some of the continental authorities. 1889 Ann. Surg. 10 404 Delay is less excusable if there is evidence of caseation taking place in the affected joint. 1918 F. L. Hoffman Mortality Respiratory Dis. Dusty Trades 338 Even years subsequent to working underground, the expectoration may have at times a bluish black discoloration, especially when there is a caseation and necrosis of the lung tissue. 1927 H. T. Lowe-Porter tr. T. Mann Magic Mountain (London ed.) II. vi. 546 Of the breaking-down of the tissues, of caseation, and the question whether the disease would be arrested by a chalky petrefaction and heal by means of fibrosis. 1986 J. F. Gracey Meat Hygiene (ed. 8) xv. 354/1 The caseous material visible on section of the node may..at times present a marbled or radiating appearance due to thin isolated radiating lines of caseation alternating with areas of normal lymph node tissue. 2009 G. C. Cook & A. I. Zumla Manson's Trop. Dis. (ed. 22) lviii. 1057/2 Nerves may become difficult to recognize [in tuberculoid leprosy], and occasionally nerves undergo caseation. This entry has been updated (OED Third Edition, September 2014; most recently modified version published online December 2021). < n.?a1425
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