pseudocystn.

Brit.

/ˈs(j)uːdə(ʊ)sɪst/, U.S.

/ˈsudoʊˌsɪst/

Origin: Formed within English, by compounding. Etymons: pseudo- comb. form, cyst n.

Etymology: < pseudo- comb. form + cyst n. With sense 1 compare German Pseudocyste (1852 or earlier). With sense 2 compare French pseudokyste (1875 or earlier).

1. Medicine. A cyst-like cavity or space lacking the (usually epithelial) lining of a true cyst.

ΚΠ

1848 W. H. Walshe in Todd's Cycl. Anat. & Physiol. IV. 141/1 A sort of pseudo-cyst is sometimes produced by distension and closure of small natural cavities, or of the excretory ducts of glands.

1852 J. Simon Gen. Pathol. 97 Fibrous tumours are likewise liable to various atrophic processes, which lead to their softening, a change which commences in their interior, and leads to the formation of a central pseudo-cyst, containing débris.

1854 C. H. Jones & E. H. Sieveking Man. Pathol. Anat. 537 Rokitansky notices the formation of a pseudo-cyst round tubercles.

1897 T. C. Allbutt et al. Syst. Med. III. 648 The density of the walls of these pseudo-cysts and their very restricted vascularity doubtless explains this retention.

1967 Canad. Med. Assoc. Jrnl. 97 1118/1 At operation it is rarely possible to distinguish between a true pancreatic cyst (retention cyst with epithelial lining) and a pseudocyst (fibrous tissue lining).

1992 ENT News May 27/1 Pseudocyst of the auricle is characterised by intercartilaginous cyst formation affecting the upper half of the anterior aspect of the pinna.

2004 K. M. Wells & A. Sirotnak in C. Brittain & D. E. Hunt Helping in Child Protective Services (ed. 2) ix. 337 A pancreatic pseudocyst, which is a cystlike nodule on the pancreas, may also develop after injury of this organ.

2. Zoology and Medicine. A cystic stage of a sporozoan or other parasitic protozoan; (also) a cyst-like aggregation of parasitic protozoans in a host cell or tissue.

ΚΠ

1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 860 The protoplasm not used up [for sporoblasts] is usually resolved as a fluid; in Stylorhynchus it collects into a central spherical mass, the pseudocyst.

1949 C. A. Hoare Handbk. Med. Protozool. xiii. 265 These aggregations, which are known as ‘pseudocysts’, owing to their cyst-like appearance, are usually rounded, measuring from 5μ to 50μ in diameter and containing from about half a dozen to more than a hundred parasites.

1966 R. R. Kudo Protozool. (ed. 5) xxv. 629 In some species..the microgametes enter the individual in which macrogametes develop, and the development of zygotes takes place, thus producing the so-called pseudocyst.

2002 Jrnl. Aquatic Animal Health 14 209 The parasite formed pseudocysts, primarily in the intraosseous spaces of spongy bone and the cartilage of the head.

†3. Botany. A protoplast in certain algae. Obsolete. rare.

ΚΠ

1889 A. W. Bennett & G. R. M. Murray Handbk. Cryptogamic Bot. 427 In several families, notably the Oscillariaceæ and Rivulariaceæ, the protoplasm of the very long filament is broken up transversely into a large number of imperfect cells known as pseudocysts.

This entry has been updated (OED Third Edition, September 2007; most recently modified version published online June 2022).

单词	pseudocyst
释义	pseudocystn. Brit. /ˈs(j)uːdə(ʊ)sɪst/, U.S. /ˈsudoʊˌsɪst/ Origin: Formed within English, by compounding. Etymons: pseudo- comb. form, cyst n. Etymology: < pseudo- comb. form + cyst n. With sense 1 compare German Pseudocyste (1852 or earlier). With sense 2 compare French pseudokyste (1875 or earlier). 1. Medicine. A cyst-like cavity or space lacking the (usually epithelial) lining of a true cyst. ΚΠ 1848 W. H. Walshe in Todd's Cycl. Anat. & Physiol. IV. 141/1 A sort of pseudo-cyst is sometimes produced by distension and closure of small natural cavities, or of the excretory ducts of glands. 1852 J. Simon Gen. Pathol. 97 Fibrous tumours are likewise liable to various atrophic processes, which lead to their softening, a change which commences in their interior, and leads to the formation of a central pseudo-cyst, containing débris. 1854 C. H. Jones & E. H. Sieveking Man. Pathol. Anat. 537 Rokitansky notices the formation of a pseudo-cyst round tubercles. 1897 T. C. Allbutt et al. Syst. Med. III. 648 The density of the walls of these pseudo-cysts and their very restricted vascularity doubtless explains this retention. 1967 Canad. Med. Assoc. Jrnl. 97 1118/1 At operation it is rarely possible to distinguish between a true pancreatic cyst (retention cyst with epithelial lining) and a pseudocyst (fibrous tissue lining). 1992 ENT News May 27/1 Pseudocyst of the auricle is characterised by intercartilaginous cyst formation affecting the upper half of the anterior aspect of the pinna. 2004 K. M. Wells & A. Sirotnak in C. Brittain & D. E. Hunt Helping in Child Protective Services (ed. 2) ix. 337 A pancreatic pseudocyst, which is a cystlike nodule on the pancreas, may also develop after injury of this organ. 2. Zoology and Medicine. A cystic stage of a sporozoan or other parasitic protozoan; (also) a cyst-like aggregation of parasitic protozoans in a host cell or tissue. ΚΠ 1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 860 The protoplasm not used up [for sporoblasts] is usually resolved as a fluid; in Stylorhynchus it collects into a central spherical mass, the pseudocyst. 1949 C. A. Hoare Handbk. Med. Protozool. xiii. 265 These aggregations, which are known as ‘pseudocysts’, owing to their cyst-like appearance, are usually rounded, measuring from 5μ to 50μ in diameter and containing from about half a dozen to more than a hundred parasites. 1966 R. R. Kudo Protozool. (ed. 5) xxv. 629 In some species..the microgametes enter the individual in which macrogametes develop, and the development of zygotes takes place, thus producing the so-called pseudocyst. 2002 Jrnl. Aquatic Animal Health 14 209 The parasite formed pseudocysts, primarily in the intraosseous spaces of spongy bone and the cartilage of the head. †3. Botany. A protoplast in certain algae. Obsolete. rare. ΚΠ 1889 A. W. Bennett & G. R. M. Murray Handbk. Cryptogamic Bot. 427 In several families, notably the Oscillariaceæ and Rivulariaceæ, the protoplasm of the very long filament is broken up transversely into a large number of imperfect cells known as pseudocysts. This entry has been updated (OED Third Edition, September 2007; most recently modified version published online June 2022). < n.1848
随便看	heterologies heterologous heterologously heterology heterolyses heterolysin heterolysis heterolytic heteromalous heteromastigate heteromaton heteromeran heteromeric heteromerism heteromerous heteromorphic heteromorphically heteromorphies heteromorphism heteromorphisms heteromorphite heteromorphosis heteromorphous heteromorphy heteronemeous