Crossword clues for effusion
Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Effusion \Ef*fu"sion\, n. [L. effusio: cf. F. effusion.]
-
The act of pouring out; as, effusion of water, of blood, of grace, of words, and the like.
To save the effusion of my people's blood.
--Dryden. -
That which is poured out, literally or figuratively.
Wash me with that precious effusion, and I shall be whiter than sow.
--Eikon Basilike.The light effusions of a heedless boy.
--Byron. -
(Pathol.)
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 liquid escaping or exuded.
Douglas Harper's Etymology Dictionary
c.1400, "a pouring out," from Middle French effusion (14c.) and directly from Latin effusionem (nominative effusio) "a pouring forth," noun of action from past participle stem of effundere "pour forth, spread abroad; to lavish, squander, waste," from ex- "out" (see ex-) + fundere "pour" (see found (v.2)). Figuratively, of speech, emotion, etc., from 1650s.
Wiktionary
n. 1 a liquid outpouring. 2 (context by extension English) a speech or emotion outpouring. 3 (context medicine English) the seeping of fluid into a body cavity; the fluid itself
WordNet
n. an unrestrained expression of emotion [syn: gush, outburst, blowup, ebullition]
flow under pressure
Wikipedia
Effusion is the process in which a gas escapes through a hole of diameter considerably smaller than the mean free path of the molecules. Under these conditions, essentially all molecules which arrive at the hole continue and pass through the hole, since collisions between molecules in the region of the hole are negligible.
By the kinetic theory of gases, the kinetic energy for a gas at a temperature T,
$$\frac{1}{2}m v_{\rm rms}^2 = \frac{3}{2}k_{\rm B} T$$
where $v_{\rm rms}$ is the root-mean-square speed of the molecules and $k_{\rm B}$ is the Boltzmann constant. The average molecular speed is about 0.921 v. The rate at which a gas of molar mass M effuses (typically expressed as the number of molecules passing through the hole per second) is then
$$Rate = \frac{pAN_A}{\sqrt{2\pi MRT}}$$
,
Here p is the gas pressure, A is the area of the hole, N is Avogadro's number, R is the gas constant and T is the absolute temperature.
At a given pressure and temperature, the effusion rate is proportional to the root-mean-square speed and inversely proportional to the square root of the molecular weight. Gases with a lower molecular weight effuse more rapidly than gases with a higher molecular weight, so that the number of lighter molecules passing through the hole per unit time is greater. This is why a balloon filled with low molecular weight helium (M = 4) deflates faster than an equivalent balloon full of higher molecular weight oxygen (M = 32). However the total mass of the escaping molecules is directly proportional to the square root of the molecular weight and is less for lighter molecules.
Effusion can refer to:
- (Chemistry) Effusion, the process of gases passing through a small hole
- (Medicine), the seeping of fluid into a body cavity; also the fluid itself; an abnormal collection of fluid in a body cavity or space, such as
- pleural effusion
- pericardial effusion
- Knee effusion
- (Geology), effusive eruption, effusion of lava from a volcano
Usage examples of "effusion".
Leipzig effusions it was love, and love in a sufficiently Anacreontic sense.
Then you being well tipled, and deceived by the obscurity of the night, drew out your sword courageously like furious Ajax, and kild not as he did, whole heard of beastes, but three blowne skinnes, to the intent that I, after the slaughter of so many enemies, without effusion of bloud might embrace and kisse, not an homicide but an Utricide.
Still, I believe if one half of the family meetings that make hearts to throb daily could lay bare the motives and impressions that underlie the effusion, there would not be half the attendant enthusiasm that characterises them now--as even the neediest of relatives might object to being regarded in the light of means to an end.
Inflammation gives rise to effusion, or the formation of a kind of cement which binds together the muscular fibers and prevents motion.
I have often seen such cases, and I know by experience that the effusion of blood or its absence proves nothing.
His Slavophil and reactionary effusions are rather second-rate, but some of the elegies, written in a state of dejection during his sufferings, have genuine human feeling in them without losing any of his verbal splendor.
Though he was much weakened by the effusion of blood, before this attempt was discovered, yet, as the instrument had missed the artery, he did not expire until he was carried to the gibbet, and underwent the sentence of the law.
From the watery condition of the blood, there resulted various serous effusions into the pericardium, ventricles of the brain, and into the abdomen.
From the watery condition of the blood there resulted various serous effusions into the pericardium, into the ventricles of the brain, and into the abdominal cavity.
The impoverished condition of the blood, which led to serous effusions within the ventricles of the brain, and around the brain and spinal cord, and into the pericardial and abdominal cavities, was gradually induced by the action of several causes, but chiefly by the character of the food.
Of the other young men of the village Gifted Hopkins was perhaps the most fervent of her admirers, as he had repeatedly shown by effusions in verse, of which, under the thinnest of disguises, she was the object.
His poetical effusions are equally creditable to his head and his heart, displaying the highest order of genius and powers of imagination and fancy hardly second to any writer of the age.
Professor, that he was equally so in the rhythmic, and instanced several consoling false quantities in the few effusions submitted to him.
Are there any symptoms of the gelatinous character of the effusions of the Lakers in the compositions of Homer?
His effusions are spread over a dead flat, and can no more get above or below the level than if they were so much stagnant water.