| 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) |
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| 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) |
| Florence flask | A globular long-necked bottle of thin glass used for holding water or other liquid in laboratory work. (05 Mar 2000) |