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effusion
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| Babylon English | Download this dictionary |
effusion
n.
outpouring, outflow; act of pouring out; flow of gas or liquid, instance of giving off something (liquid, gas, smell, etc.); escape of fluid into a body cavity (Medicine); instance of talking or writing in an uncontrolled way full of emotion, something said or expressed with a lot of emotion; excessive use of words, verbiage
| English Wikipedia - The Free Encyclopedia | Download this dictionary |
Effusion
Effusion is the process in which a gas escapes through a small hole. This occurs if the diameter of the hole is considerably smaller than the mean free path of the molecules. According to Graham's law, the rate at which gases effuse (i.e., how many molecules pass through the hole per second) is dependent on their molecular weight. Gases with a higher molecular weight effuse more slowly than gases with a lower molecular weight; the number of smaller molecules escaping will be greater but the mass of the larger molecules will be greater. For two gases at the same temperature 
, and thus having the same kinetic energy, the root mean square molecular speed, , of each gas can be found using the equation
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| WordNet 2.0 | Download this dictionary |
effusion
Noun
1. an unrestrained expression of emotion
(synonym) gush, outburst, blowup, ebullition
(hypernym) expression, manifestation, reflection, reflexion
(hyponym) acting out
(derivation) effuse
2. flow under pressure
(hypernym) flood, overflow, outpouring
(derivation) flow out, effuse
| Babylon French-English | Download this dictionary |
effusion
nf.
effusion, outpourings, spilling, issue
| Webster's Revised Unabridged Dictionary (1913) | Download this dictionary |
Effusion
(n.)
The liquid escaping or exuded.
The liquid escaping or exuded.
(n.)
The escape of a fluid out of its natural vessel, either by rupture of the vessel, or by exudation through its walls. It may pass into the substance of an organ, or issue upon a free surface.
The escape of a fluid out of its natural vessel, either by rupture of the vessel, or by exudation through its walls. It may pass into the substance of an organ, or issue upon a free surface.
(n.)
The act of pouring out; as, effusion of water, of blood, of grace, of words, and the like.
The act of pouring out; as, effusion of water, of blood, of grace, of words, and the like.
(n.)
That which is poured out, literally or figuratively.
That which is poured out, literally or figuratively.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
