| PMBSF | postero-medial barrel sub-field |
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| barrel | 1. A round vessel or cask, of greater length than breadth, and bulging in the middle, made of staves bound with hoops, and having flat ends or heads. 2. The quantity which constitutes a full barrel. This varies for different articles and also in different places for the same article, being regulated by custom or by law. A barrel of wine is 31 1/2 gallons; a barrel of flour is 196 pounds. 3. A solid drum, or a hollow cylinder or case; as, the barrel of a windlass; the barrel of a watch, within which the spring is coiled. 4. A metallic tube, as of a gun, from which a projectile is discharged. 5. A jar. 6. <zoology> The hollow basal part of a feather. <anatomy> Barrel bulk, the tympanum, or tympanic cavity. Barrel organ, an instrument for producing music by the action of a revolving cylinder. Barrel vault. See Vault. Origin: OE. Barel, F. Baril, prob. Fr. Barre bar. Cf. Barricade. Source: Websters Dictionary (01 Mar 1998) |
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| barrel chest | A chest permanently resembling the shape of a barrel, i.e., with increased anteroposterior diameter, roughly equaling the lateral diameter; usually with some degree of kyphosis; seen in cases of emphysema. (05 Mar 2000) |
| barrel distortion | <microscopy> A distortion, or aberration. (05 Aug 1998) |
| barrel of oil equivalent | A unit of energy equal to the amount of energy contained in a barrel of crude oil. Approximately 5.78 million Btu or 1,700 kWh. A barrel is a liquid measure equal to 42 gallons. (05 Dec 1998) |
| barrel chest |
a rounded, bulging chest with abnormal increase in the anteroposterior diameter, showing little movement on respiration; seen in emphysema and in kyphosis.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| barrel chest |
the shape of the chest in some patients with COPD when air trapping causes overinflated lungs
Ãâó: members.tripod.com/noairtogo/gloss.htm
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| barrel chest |
A chest permanently resembling the shape of a barrel, ie, with increased anteroposterior diameter, roughly equaling the lateral diameter; usually with some degree of kyphosis; seen in cases of emphysema. [CancerWEB]
Ãâó: www.antiquusmorbus.com/English/EnglishB.htm
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| barrel distortion |
One of the common lens aberrations, where straight lines at the edge of the field are caused to bend into the shape of a barrel.
Ãâó: www.startphoto.com/learn/glossary/glossary_b-bh.ht...
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| barrel distortion |
A lens aberration or defect that causes straight lines to bow outward away from the center of the image.
Ãâó: www.vistek.ca/glossary/default.asp
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| barrel | a cylindrical container that holds liquids |
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| barrel | a tube through which a bullet travels when a gun is fired |
| barrel | any of various units of capacity |
| barrel | the quantity that a barrel (of any size) will hold |
| barrel | a bulging cylindrical shape |
| barrel | put in barrels |
| barrel | any cactus of the genus Echinocactus |
| barrel | a cactus of the genus Ferocactus: unbranched barrel-shaped cactus having deep ribs with numerous spines and usually large funnel-shaped flowers followed by dry fruits |
| barrel | a knot used for tying fishing leaders together |
| barrel | a craftsman who makes or repairs wooden barrels or tubs |
| barrel | a musical instrument that makes music by rotation of a cylinder studded with pegs |
| barrel | a roll in which the plane follows a spiral course |
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