单词 | colloid |
释义 | colloidadj.n. A. adj. Of the nature or appearance of glue. 1. Pathology. colloid substance, colloid tissue, colloid matter, colloid corpuscles, colloid spheres: a homogeneous or slightly granular gelatinous substance into which the cells are changed in certain forms of degeneration of tissue ( colloid degeneration, colloid metamorphosis). colloid cancer: a form of cancer in which colloid degeneration takes place. ΘΚΠ the world > health and disease > ill health > a disease > suppuration > [adjective] fouleOE festereda1398 quitterya1398 quittorousa1398 festrya1400 purulent?a1425 suppurate?a1425 matterativec1487 mattereda1500 mattery1527 attery1535 sanious1562 festering1563 matterish1566 infestered1570 ulcerated1580 suppurated1583 sordid1597 corsie1605 fistulating1607 rankling1631 suppurable1634 rancorous1635 undercotted1636 undercotting1637 suppuratory1659 puriform1668 quittorish1668 suppurating1671 scandalous1676 suppurative1746 suppurant1799 gleety1822 puruloid1846 pyoid1846 colloid substance1849 peptic1884 pussy1888 maturable1889 fretty1894 1849–52 Todd's Cycl. Anat. & Physiol. IV. i. 118/2 A form most distinct in..colloid cancer and fibrous tumours. 1870 T. Holmes Syst. Surg. (ed. 2) I. 576 A section of the tumour exhibited the simplest colloid structure. 1876 J. Van Duyn & E. C. Seguin tr. E. L. Wagner Man. Gen. Pathol. 329 Colloid metamorphosis consists in the transformation of tissues into a completely homogeneous, colorless or faint yellow, dull, translucent, sometimes fluid or soft, glue-like..substance. 2. Chemistry. Applied by Graham, 1861, to describe a peculiar state of aggregation in which substances exist; opposed to crystalloid. Substances in the colloid state are characterized by little or no tendency to diffuse through animal membranes or vegetable parchment, do not readily crystallize, are inert in their chemical relations, but are highly changeable. So called because gelatin may be taken as the type of the class. ΘΚΠ the world > matter > chemistry > physical chemistry > colloid > [adjective] colloid1861 colloidal1861 1861 T. Graham in Philos. Trans. (Royal Soc.) 151 184 (note) Certain liquid colloid substances are capable of forming a jelly and yet still remain liquefiable by heat and soluble in water. Such is gelatine itself. 1867 H. Spencer First Princ. (ed. 2) ii. xiii. §101. 295 Matter has two solid states, distinguished as crystalloid and colloid; of which the first is due to union of the individual atoms or molecules, and the second to the union of groups of such individual atoms or molecules. 1869 M. Somerville Molecular & Microsc. Sci. i. iii. 110 Solutions of..crystalloids pass freely through colloid substances, such as parchment..and membrane, into water, though they have no pores. 3. Mineralogy. One of the forms in which minerals occur: see quot. ΘΚΠ the world > matter > chemistry > physical chemistry > colloid > [adjective] > mineral form colloidal1864 colloid1879 1879 F. Rutley Study of Rocks x. 152 This condition as intermediate between the crystallised and the colloid forms of silica. 1885 A. Geikie Geol. ii. ii. ii. 62 Minerals..occur in four conditions, according to the circumstances under which they have been produced..1. Crystalline..2. Vitreous..3. Colloid, as a jelly-like though stony substance, deposited from aqueous solution. The most abundant mineral in nature which takes the colloid form is silica..4. Amorphous. B. n. 1. Pathology. The colourless or yellowish transparent jelly-like substance formed in colloid degeneration; also a similar substance found normally in the thyroid gland. ΘΚΠ the world > life > the body > secretory organs > secretion > other secretions > [noun] colloid1849 thyrocolloid1909 autacoid1914 the world > health and disease > ill health > a disease > suppuration > [noun] > pus or matter wursomeOE yousterc725 warec1175 quittorc1300 corrumpciona1340 humour1340 atter1398 mattera1400 pus?a1425 filthiness1525 corruption1526 filth1561 gear1562 sanies1562 baggage1576 purulence1598 suppuration1601 lye1615 congestion1634 colluvies1651 collution1657 colloid1849 purulage1898 1849–52 Todd's Cycl. Anat. & Physiol. IV. ii. 1116/2 But no example of colloid in it [thymus gland] has yet been detected. 1874 C. H. Jones & E. H. Sieveking Man. Pathol. Anat. 126 Colloid is related to the albuminates, and resembles mucin. 2. Chemistry (mostly plural). A colloid body or substance, as distinct from a crystalloid: see A. 2. ΘΚΠ the world > matter > chemistry > physical chemistry > colloid > [noun] colloid1861 1861 T. Graham in Philos. Trans. (Royal Soc.) 151 183 It is proposed to designate substances of this class as colloids, and to speak of their peculiar form of aggregation as the colloidal condition of matter. 1869 M. Somerville Molecular & Microsc. Sci. i. iii. 109 Substances such as salts, sugars, etc., are much more diffusible than colloids or amorphous sticky bodies, such as gum, caramel, jellies. 1880 H. C. Bastian Brain i. 5 It is known..that certain typical colloids may, under some conditions, be converted into crystalloids. This entry has not yet been fully updated (first published 1891; most recently modified version published online June 2022). < adj.n.1849 |
随便看 |
|
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。