Pneumocystisn.

Brit.

/ˌnjuːmə(ʊ)ˈsɪstɪs/, U.S.

/ˌn(j)umoʊˈsɪstᵻs/

Inflections: Plural unchanged.

Origin: A borrowing from Latin. Etymon: Latin Pneumocystis.

Etymology: < scientific Latin Pneumocystis, genus name (P. Delanoë & M. Delanoë 1912, in Comptes rendus hebd. de l'Acad. des Sci. 155 660) < pneumo- pneumo- comb. form + ancient Greek κύστις bladder (see cyst n.). Compare slightly earlier pneumocystic adj. and slightly later pneumocystosis n.

Medicine and Microbiology.

A genus of parasitic microorganisms (originally thought to be protozoans, now recognized as fungi) found in the lungs of mammals; (also pneumocystis) an organism of this genus; infection with these organisms. Frequently attributive. Pneumocystis was originally considered to be a monospecific genus of protozoans. In the late 1980s it was reclassified as a genus of fungi (family Pneumocystidaceae), and more recently was recognized to consist of a number of closely related, often host-specific species. The name of the type species Pneumocystis carinii is now restricted to a form found only in rats, and the species commonly found in humans is known as P. jiroveci. The pneumonia in humans caused by this organism has also been called Pneumocystis carinii pneumonia (abbreviated PCP).

ΘΚΠ

the world > animals > invertebrates > protozoa > [noun] > member of > other protozoans

suctorian1842

tintinnid1945

Pneumocystis1955

1955 Jrnl. Clin. Pathol. 8 23/1 Bachmann (1953) found pneumocystis in all of the 14 cases of plasmacellular pneumonia which he examined.

1956 Amer. Jrnl. Pathol. 32 1 Knowledge of pneumocystis pneumonitis has developed far more rapidly in Europe than in the United States or elsewhere in the world.

1975 Chest 68 12 Brush biopsy provided additional valuable laboratory data in bacterial, mycobacterial and cytomegalovirus infections but had a poor yield in Pneumocystis infection.

1983 Amer. Rev. Respiratory Dis. 128 182 In contrast to Pneumocystis cysts in infected lung tissue from other humans, our patient's Pneumocystis cysts reacted more avidly with antiserum to rat Pneumocystis than with antiserum to human pneumocystis.

1987 D. J. Weatherall et al. Oxf. Textbk. Med. (ed. 2) II. xv. 9/1 Transbronchial biopsy should be suitable if the diagnosis is likely to be..diffuse infection (e.g. disseminated tuberculosis or pneumocystis).

1998 L. Margulis & K. V. Schwartz Five Kingdoms (ed. 3) iv. 364/1 The sequence of nucleotides in the ribosomal RNA gene classifies Pneumocystis with the Ascomycota.

2002 Independent 29 May 17/3 In humans (and other mammals) pneumocystis is the cause of an opportunistic pneumonia, ‘PCP’, in those with impaired immune systems, for example following chemotherapy for malignancy; immunosuppression after organ transplantation, or HIV infection.

Compounds

pneumocystis pneumonia n. the pneumonia, typically diffuse and plasmacellular, caused by infection with organisms of the genus Pneumocystis, usually in immunocompromised hosts.

ΘΚΠ

the world > health and disease > ill health > a disease > disorders of internal organs > disorder of respiratory organs > [noun] > disorders of lungs > pneumonia > types of pneumonia

typho-pneumonia1854

broncho-pneumonia1858

walking pneumonia1888

virus pneumonia1936

pneumocystis pneumonia1956

PCP1975

Legion disease1976

legionnaires' disease1976

1956 Jrnl. Pathol. & Bacteriol. 72 457 It is tempting to speculate whether the rare cases of pulmonary microlithiasis alveolaris may not possibly be explained as the ultimate outcome of a pneumocystis pneumonia in an adult.

1988 Brit. Med. Jrnl. 6 Aug. 382/2 In all 19 patients positive for pneumocystis, it was the first episode of pneumocystis pneumonia.

1996 P. H. Duesberg Inventing AIDS Virus v. 147 All three displayed the same candidiasis, or yeast infection, as well as the Pneumocystis pneumonia.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	pneumocystis
释义	Pneumocystisn. Brit. /ˌnjuːmə(ʊ)ˈsɪstɪs/, U.S. /ˌn(j)umoʊˈsɪstᵻs/ Inflections: Plural unchanged. Origin: A borrowing from Latin. Etymon: Latin Pneumocystis. Etymology: < scientific Latin Pneumocystis, genus name (P. Delanoë & M. Delanoë 1912, in Comptes rendus hebd. de l'Acad. des Sci. 155 660) < pneumo- pneumo- comb. form + ancient Greek κύστις bladder (see cyst n.). Compare slightly earlier pneumocystic adj. and slightly later pneumocystosis n. Medicine and Microbiology. A genus of parasitic microorganisms (originally thought to be protozoans, now recognized as fungi) found in the lungs of mammals; (also pneumocystis) an organism of this genus; infection with these organisms. Frequently attributive. Pneumocystis was originally considered to be a monospecific genus of protozoans. In the late 1980s it was reclassified as a genus of fungi (family Pneumocystidaceae), and more recently was recognized to consist of a number of closely related, often host-specific species. The name of the type species Pneumocystis carinii is now restricted to a form found only in rats, and the species commonly found in humans is known as P. jiroveci. The pneumonia in humans caused by this organism has also been called Pneumocystis carinii pneumonia (abbreviated PCP). ΘΚΠ the world > animals > invertebrates > protozoa > [noun] > member of > other protozoans suctorian1842 tintinnid1945 Pneumocystis1955 1955 Jrnl. Clin. Pathol. 8 23/1 Bachmann (1953) found pneumocystis in all of the 14 cases of plasmacellular pneumonia which he examined. 1956 Amer. Jrnl. Pathol. 32 1 Knowledge of pneumocystis pneumonitis has developed far more rapidly in Europe than in the United States or elsewhere in the world. 1975 Chest 68 12 Brush biopsy provided additional valuable laboratory data in bacterial, mycobacterial and cytomegalovirus infections but had a poor yield in Pneumocystis infection. 1983 Amer. Rev. Respiratory Dis. 128 182 In contrast to Pneumocystis cysts in infected lung tissue from other humans, our patient's Pneumocystis cysts reacted more avidly with antiserum to rat Pneumocystis than with antiserum to human pneumocystis. 1987 D. J. Weatherall et al. Oxf. Textbk. Med. (ed. 2) II. xv. 9/1 Transbronchial biopsy should be suitable if the diagnosis is likely to be..diffuse infection (e.g. disseminated tuberculosis or pneumocystis). 1998 L. Margulis & K. V. Schwartz Five Kingdoms (ed. 3) iv. 364/1 The sequence of nucleotides in the ribosomal RNA gene classifies Pneumocystis with the Ascomycota. 2002 Independent 29 May 17/3 In humans (and other mammals) pneumocystis is the cause of an opportunistic pneumonia, ‘PCP’, in those with impaired immune systems, for example following chemotherapy for malignancy; immunosuppression after organ transplantation, or HIV infection. Compounds pneumocystis pneumonia n. the pneumonia, typically diffuse and plasmacellular, caused by infection with organisms of the genus Pneumocystis, usually in immunocompromised hosts. ΘΚΠ the world > health and disease > ill health > a disease > disorders of internal organs > disorder of respiratory organs > [noun] > disorders of lungs > pneumonia > types of pneumonia typho-pneumonia1854 broncho-pneumonia1858 walking pneumonia1888 virus pneumonia1936 pneumocystis pneumonia1956 PCP1975 Legion disease1976 legionnaires' disease1976 1956 Jrnl. Pathol. & Bacteriol. 72 457 It is tempting to speculate whether the rare cases of pulmonary microlithiasis alveolaris may not possibly be explained as the ultimate outcome of a pneumocystis pneumonia in an adult. 1988 Brit. Med. Jrnl. 6 Aug. 382/2 In all 19 patients positive for pneumocystis, it was the first episode of pneumocystis pneumonia. 1996 P. H. Duesberg Inventing AIDS Virus v. 147 All three displayed the same candidiasis, or yeast infection, as well as the Pneumocystis pneumonia. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1955
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