flask (redirected from trial, closure flask)

flask (flask)

1. a laboratory vessel, usually of glass and with a constricted neck.

2. a metal case in which materials used in making artificial dentures are placed for processing.

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Erlenmeyer flask  a conical glass flask with a broad base and narrow neck.

volumetric flask  a narrow-necked vessel of glass calibrated to contain or deliver an exact volume at a given temperature.

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flask,

1 a narrow-neck glass vessel used for heating liquids, distilling chemicals, or culturing fluid media.

2 a small glass receptacle for holding liquids or powders.

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flask,

n a metal case or tube used in investing procedures.

flask, casting,

n See flask, refractory.

flask, closure,

n the procedure of bringing the parts of a flask together to form a complete mold.

flask, crown,

n a small, sectional, metal, boxlike case in which a sectional mold of plaster of paris or artificial stone is made for the purpose of compressing and curing plastics on small dental restorations.

flask, denture,

n a sectional, metal, boxlike case in which a sectional mold of plaster of paris or artificial stone is made for the purpose of compressing and curing dentures or other resinous restorations.

flask, final, closure,

n the last closure of a flask before curing and after trial packing the mold with a denture base material.

flask, injection,

n a special flask designed to permit the filling of the mold after the flask is closed or to permit the addition of denture base material to that in the flask after the flask is closed.

flask, refractory (casting flask, casting ring),

n a metal tube in which a refractory mold is made for casting metal dental restorations or appliances.

flask, trial, closure,

n a preliminary closure made for the purposes of eliminating excess denture base or other plastic material and of ensuring that the mold is completely filled.

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flask

a laboratory vessel, usually of glass and with a constricted neck.