pneumatocystn.

Brit.

/ˈnjuːmətəsɪst/,

/njuːˈmatə(ʊ)sɪst/,

/njᵿˈmatə(ʊ)sɪst/, U.S.

/n(j)uˈmædəˌsɪst/

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

Etymology: < pneumato- comb. form + cyst n. (see quot. 1859 at main sense). Compare pneumatophore n.

Chiefly Zoology and Botany.

Originally: the gas-filled chamber of a pneumatophore (pneumatophore n. 1). Later more widely: any air-filled sac in an organism, esp. in an animal body; (Medicine) a benign intraosseous cyst containing gas or air.

ΘΚΠ

the world > animals > birds > parts of or bird defined by > [noun] > parts of lung

pneumatocyst1859

tracheobronchial1896

parabronchus1916

the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Hydrozoa > order Siphonophora > member of > part containing air-cavity > air-sac

pneumatocyst1859

1859 T. H. Huxley Oceanic Hydrozoa 6 In the adult, this sac, which I shall term the pneumatocyst, is sometimes open at the apex (Physalia, Rhizophysa), and can communicate with the exterior by a pore which traverses the ectoderm of the pneumatophore.

1861 J. R. Greene Man. Animal Kingdom II. 113 Apolemiadæ. Pneumatocyst small. Cœnosarc filiform.

1884 E. Coues Key to N. Amer. Birds (ed. 2) 200 The Pneumatocysts.—A bird is literally inflated with these great membranous receptacles of air.

1920 Bot. Gaz. 70 230 There was present an average of 4 per cent (by volume) of carbon monoxide in the pneumatocyst of the giant Pacific Coast kelp.

1996 Spine 21 389 Intraosseous pneumatocyst is a rare benign condition, commonly seen in iliac bone or sacrum.

Derivatives

pneumatocystic adj. rare Apparently only attested in dictionaries or glossaries.

ΚΠ

1890 Cent. Dict. Pneumatocystic, of or having the character of a pneumatocyst.

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

单词	pneumatocyst
释义	pneumatocystn. Brit. /ˈnjuːmətəsɪst/, /njuːˈmatə(ʊ)sɪst/, /njᵿˈmatə(ʊ)sɪst/, U.S. /n(j)uˈmædəˌsɪst/ Origin: Formed within English, by compounding. Etymons: pneumato- comb. form, cyst n. Etymology: < pneumato- comb. form + cyst n. (see quot. 1859 at main sense). Compare pneumatophore n. Chiefly Zoology and Botany. Originally: the gas-filled chamber of a pneumatophore (pneumatophore n. 1). Later more widely: any air-filled sac in an organism, esp. in an animal body; (Medicine) a benign intraosseous cyst containing gas or air. ΘΚΠ the world > animals > birds > parts of or bird defined by > [noun] > parts of lung pneumatocyst1859 tracheobronchial1896 parabronchus1916 the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Hydrozoa > order Siphonophora > member of > part containing air-cavity > air-sac pneumatocyst1859 1859 T. H. Huxley Oceanic Hydrozoa 6 In the adult, this sac, which I shall term the pneumatocyst, is sometimes open at the apex (Physalia, Rhizophysa), and can communicate with the exterior by a pore which traverses the ectoderm of the pneumatophore. 1861 J. R. Greene Man. Animal Kingdom II. 113 Apolemiadæ. Pneumatocyst small. Cœnosarc filiform. 1884 E. Coues Key to N. Amer. Birds (ed. 2) 200 The Pneumatocysts.—A bird is literally inflated with these great membranous receptacles of air. 1920 Bot. Gaz. 70 230 There was present an average of 4 per cent (by volume) of carbon monoxide in the pneumatocyst of the giant Pacific Coast kelp. 1996 Spine 21 389 Intraosseous pneumatocyst is a rare benign condition, commonly seen in iliac bone or sacrum. Derivatives pneumatocystic adj. rare Apparently only attested in dictionaries or glossaries. ΚΠ 1890 Cent. Dict. Pneumatocystic, of or having the character of a pneumatocyst. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1859
随便看	to lay in broadband to lay in dish to lay in for to lay in forbode to lay in his dish to lay in his neck to look for to look for a needle in a bottle bundle of hay to look for a needle in a bottle of hay to look for a needle in a haystack to look for cupids in the eyes to look for trouble to look forth to look forward to look forwards to look glum to look glum on to look good enough to eat to look grim to look in to look in the eye to look in the eyes to look in the face to look inside to look into