trial flask closure
| Dewar flask | <apparatus> A glass vessel, often silvered, with two walls, the space between which is evacuated; used for maintaining materials at constant temperature or, more usually, at low temperature. Synonym: vacuum flask. (05 Mar 2000) |
|---|
| dewar | <radiobiology> Cryogenic storage container in which two concentric vessels are separated by an insulating vacuum which prevents conductive and convective heat losses. The vessels themselves are often silvered to reduce radiative heat losses. (09 Oct 1997) |
|---|---|
| Dewar, Sir James | <person> English chemist, 1842-1923. See: Dewar flask. (05 Mar 2000) |
| vacuum flask | <apparatus> A glass vessel, often silvered, with two walls, the space between which is evacuated; used for maintaining materials at constant temperature or, more usually, at low temperature. Synonym: vacuum flask. (05 Mar 2000) |
| casting flask | A metal tube in which a refractory mold is made for casting metal dental restorations or appliances. Synonym: casting flask, casting ring. (05 Mar 2000) |
| refractory flask | A metal tube in which a refractory mold is made for casting metal dental restorations or appliances. Synonym: casting flask, casting ring. (05 Mar 2000) |
| volumetric flask | A flask calibrated to contain or to deliver a definite amount of liquid. (05 Mar 2000) |
| crown flask | A sectional metal boxlike case in which a sectional mold is made of plaster of Paris or artificial stone for the purpose of compressing and curing dentures or other resinous restorations. Synonym: crown flask. (05 Mar 2000) |
| denture flask | A sectional metal boxlike case in which a sectional mold is made of plaster of Paris or artificial stone for the purpose of compressing and curing dentures or other resinous restorations. Synonym: crown flask. (05 Mar 2000) |
| injection flask | A denture flask designed so as to permit the forced flow of denture base material from a reservoir into the mold after the flask is closed and during curing. (05 Mar 2000) |
| erlenmeyer flask | <apparatus> A piece of chemistry laboratory equipment, a container often made of glass, which has a narrow cylindrical mouth and a cone-shaped main body that ends in a wide, flat bottom. It may also have a smaller straight tube-shaped opening from the side of the cylindrical part, where tubes can be attached. (09 Oct 1997) |
| erlenmeyer flask deformity | <radiology> Abnormal modeling of metaphysis, osteopetrosis, chronic anaemia (e.g., SSD), Gaucher disease, Niemann-Pick disease, fibrous dysplasia, Pyle disease (metaphyseal dysplasia) (12 Dec 1998) |
| erlenmeyer flask mnemonic | <radiology> D: Down syndrome, A: achondroplasia, anaemias, M: metaphyseal dysplasia (Pyle disease), metals, N: Nieman-Pick disease, F: fibrous dysplasia, R: rheumatoid arthritis, rickets, O: osteopetrosis, G: Gaucher disease (12 Dec 1998) |
| Fernbach flask | A flask used in microbial fermentations where a large surface area of the liquid substrate is required. (05 Mar 2000) |
| flask | 1. A small bottle-shaped vessel for holding fluids; as, a flask of oil or wine. 2. A narrow-necked vessel of metal or glass, used for various purposes; as of sheet metal, to carry gunpowder in; or of wrought iron, to contain quicksilver; or of glass, to heat water in, etc. 3. A bed in a gun carriage. 4. The wooden or iron frame which holds the sand, etc, forming the mold used in a foundry; it consists of two or more parts; viz, the cope or top; sometimes, the cheeks, or middle part; and the drag, or bottom part. When there are one or more cheeks, the flask is called a three part flask, four part flask, etc. Erlenmeyer flask, a thin glass flask, flat-bottomed and cone-shaped to allow of safely shaking its contents laterally without danger of spilling; so called from Erlenmeyer, a German chemist who invented it. Florence flask. [From Florence in Italy] Same as Betty. A glass flask, round or pear-shaped, with round or flat bottom, and usually very thin to allow of heating solutions. Pocket flask, a kind of pocket dram bottle, often covered with metal or leather to protect it from breaking. Origin: AS. Flasce, flaxe; akin to D. Flesch, OHG. Flasca, G. Flasche, Icel. & Sw. Flaska, Dan. Flaske, OF. Flasche, LL. Flasca, flasco; of uncertain origin; cf. L. Vasculum, dim. Of vas a vessel, Gr, . Cf. Flagon, Flasket. Source: Websters Dictionary (01 Mar 1998) |
| flask closure | In dentistry, the procedure of bringing the two halves or parts of a flask together; trial flask closure's are preliminary closure's made to eliminate excess denture-base material and to ensure that the mold is completely filled; the final flask closure is the last closure of a flask before curing, following trial packing of the mold with denture-base material. (05 Mar 2000) |
| Dewar flask | vacuum flask that holds liquid air or helium for scientific experiments |
|---|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|