trial flask closure
| Mariotte bottle | A stoppered bottle with bottom outlet, used as a reservoir for constant infusions; air enters only by bubbling through a tube extending down through the stopper almost to the bottom; a partial vacuum thus supports the variable height of liquid above the air inlet, providing a constant gravity head for outflow. (05 Mar 2000) |
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| Mariotte, Edme | <person> French physicist, 1620-1684. See: Mariotte bottle, Mariotte's experiment, Mariotte's law, Mariotte's blind spot. (05 Mar 2000) |
| Mariotte's blind spot | The portion of the optic nerve seen in the fundus with the ophthalmoscope. It is formed by the meeting of all the retinal ganglion cell axons as they enter the optic nerve. Because the retina at the optic disk has no photoreceptors there is a corresponding blind spot in the visual field. (12 Dec 1998) |
| Mariotte's experiment | An experiment in which one looks fixedly with one eye (the other being closed), at a black dot on a card, on which is also marked a black cross; as the card is moved to or from the eye, at a certain distance the cross becomes invisible but appears again as the card is moved further; this proves the absence of photoreceptors where the optic nerve enters the eye. (05 Mar 2000) |
| mariotte's law | <physics> See Boyle's law, under Law. Source: Websters Dictionary (01 Mar 1998) |
| 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) |
| 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) |
| 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) |
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