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Meaning of "group speed" in the English dictionary

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DICTIONARY
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PRONUNCIATION OF GROUP SPEED

group speed play
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GRAMMATICAL CATEGORY OF GROUP SPEED

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Group speed is a noun.
A noun is a type of word the meaning of which determines reality. Nouns provide the names for all things: people, objects, sensations, feelings, etc.

WHAT DOES GROUP SPEED MEAN IN ENGLISH?

Group velocity

The group velocity of a wave is the velocity with which the overall shape of the waves' amplitudes — known as the modulation or envelope of the wave — propagates through space. For example, imagine what happens if a stone is thrown into the middle of a very still pond. When the stone hits the surface of the water, a circular pattern of waves appears. It soon turns into a circular ring of waves with a quiescent center. The ever expanding ring of waves is the wave group, within which one can discern individual wavelets of differing wavelengths traveling at different speeds. The longer waves travel faster than the group as a whole, but they die out as they approach the leading edge. The shorter waves travel more slowly and they die out as they emerge from the trailing boundary of the group.

Definition of group speed in the English dictionary

The definition of group speed in the dictionary is the speed at which energy is propagated in a wave. This is the quantity determined when one measures the distance which the radiation travels in a given time. In a medium in which the speed increases with wavelength the group speed is less than the phase speed, and vice versa.

WORDS THAT BEGIN LIKE GROUP SPEED

group captain
group dynamics
group insurance
group marriage
Group of Eight
Group of Five
Group of Seven
Group of Seventy-Seven
Group of Ten
Group of Three
Group of Twenty Finance Ministers and Central Bank Governors
Group of Twenty-Four
group practice
group sex
group theory
group therapist
group therapy
group velocity
group work
groupable

WORDS THAT END LIKE GROUP SPEED

airspeed
at speed
average speed
base speed
cruising speed
film speed
Godspeed
groundspeed
high-speed
instantaneous speed
landing speed
multispeed
phase speed
reading speed
shutter speed
speed
superspeed
two-speed
typing speed
up to speed
wave speed

Synonyms and antonyms of group speed in the English dictionary of synonyms

SYNONYMS

Translation of «group speed» into 25 languages

TRANSLATOR
online translator

TRANSLATION OF GROUP SPEED

Find out the translation of group speed to 25 languages with our English multilingual translator.
The translations of group speed from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «group speed» in English.

Translator English - Chinese

群速度
1,325 millions of speakers

Translator English - Spanish

velocidad grupo
570 millions of speakers

English

group speed
510 millions of speakers

Translator English - Hindi

समूह गति
380 millions of speakers
ar

Translator English - Arabic

سرعة مجموعة
280 millions of speakers

Translator English - Russian

скорость группа
278 millions of speakers

Translator English - Portuguese

velocidade grupo
270 millions of speakers

Translator English - Bengali

গ্রুপ গতি
260 millions of speakers

Translator English - French

vitesse de groupe
220 millions of speakers

Translator English - Malay

Kelajuan kumpulan
190 millions of speakers

Translator English - German

Gruppengeschwindigkeit
180 millions of speakers

Translator English - Japanese

グループ短縮
130 millions of speakers

Translator English - Korean

그룹 단축
85 millions of speakers

Translator English - Javanese

Kacepetan klompok
85 millions of speakers
vi

Translator English - Vietnamese

tốc độ nhóm
80 millions of speakers

Translator English - Tamil

குழு வேகம்
75 millions of speakers

Translator English - Marathi

गट गती
75 millions of speakers

Translator English - Turkish

Grup hızı
70 millions of speakers

Translator English - Italian

velocità di gruppo
65 millions of speakers

Translator English - Polish

obrotów grupy
50 millions of speakers

Translator English - Ukrainian

швидкість група
40 millions of speakers

Translator English - Romanian

viteza de grup
30 millions of speakers
el

Translator English - Greek

ταχύτητα ομάδας
15 millions of speakers
af

Translator English - Afrikaans

groep spoed
14 millions of speakers
sv

Translator English - Swedish

grupp hastighet
10 millions of speakers
no

Translator English - Norwegian

gruppekort
5 millions of speakers

Trends of use of group speed

TRENDS

TENDENCIES OF USE OF THE TERM «GROUP SPEED»

The term «group speed» is normally little used and occupies the 137.533 position in our list of most widely used terms in the English dictionary.
0
100%
FREQUENCY
Little used
36
/100
The map shown above gives the frequency of use of the term «group speed» in the different countries.
Principal search tendencies and common uses of group speed
List of principal searches undertaken by users to access our English online dictionary and most widely used expressions with the word «group speed».

FREQUENCY OF USE OF THE TERM «GROUP SPEED» OVER TIME

The graph expresses the annual evolution of the frequency of use of the word «group speed» during the past 500 years. Its implementation is based on analysing how often the term «group speed» appears in digitalised printed sources in English between the year 1500 and the present day.

Examples of use in the English literature, quotes and news about group speed

EXAMPLES

10 ENGLISH BOOKS RELATING TO «GROUP SPEED»

Discover the use of group speed in the following bibliographical selection. Books relating to group speed and brief extracts from same to provide context of its use in English literature.
1
Lorentz Group, CPT and Neutrinos: Proceedings of the ...
_ Y dr dr Combining these results and using a> = c k yields: 2.3 Definition and calculation of wave group speed (8) (9) Peak of modulation part of . signal propagates with speed equal to group speed Modulated sinusoidal signal In some ...
Andrew E. Chubykalo, 2000
2
Introductory Dynamical Oceanography
Wave energy travels at the group speed. One can see this intuitively if one considers that (in Fig. 12.5) initially at the position x = x2 there is a zero wave amplitude and therefore zero wave energy, while at x = x, there is maximum amplitude ...
Stephen Pond, George L. Pickard, 1983
3
Ultrasonic tissue characterization II: a collection of ...
The group speed, Cg, is defined also in terms of the wave- number: Cg = dw/dk. This is the speed that an observer of a "packet" of sound energy, having by necessity a finite bandwidth, would travel in order to see a constant wave pressure.
Melvin Linzer, United States. National Bureau of Standards, National Measurement Laboratory (U.S.), 1979
4
Foundations of Biomedical Ultrasound
The group speed is used to describe the speed with which a representative characteristic of the pulse moves. Lamb [26, pp. 381-382], has provided a useful and fairly intuitive definition for the group speed. He noted that the wavelength could ...
Richard S. C. Cobbold Professor of Biomedical Engineering University of Toronto (Emeritus), 2006
5
Fundamentals of Atmospheric Modeling
... nondispersive case and 4 s in the dispersive case. In the nondispersive case, the group speed equals the phase speed of each harmonic wave in the group and the wave group does not change shape over time as it travels over distance x.
Mark Z. Jacobson, 2005
6
Gravitation and Cosmology: From the Hubble Radius to the ...
DERIVATION OF PHASE SPEED AND GROUP SPEED RELATIONS In several papers written by the author [3, 4, 6] and in reference [7], the instantaneous phase speed has been determined to be: Using the following relations: and the ...
Richard L. Amoroso, G. Hunter, J.P. Vigier, 2002
7
Computational Ocean Acoustics
However, the group-speed dependence on phase speed changes depending on the nature of the environment – with refraction and reflection-dominated environments denoting major categories. In reflection-dominated environments, the ...
Finn B. Jensen, William A. Kuperman, Michael B. Porter, 2011
8
Encyclopedia of Physics
The speed of propagation of an interference pattern is called its group speed. If sinusoidal waves of different frequencies possess equal phase speeds, the interference pattern will propagate at the same speed, so that the group speed will ...
Joe Rosen, 2009
9
Advanced Electromagnetism and Vacuum Physics
In view of this, the statement must he modified hy saying that the group speed of signals, perturhations and particles must not exceed the light speed. But even the preceding statement needs to he made more precise in order to avoid ...
Patrick Cornille, 2003
10
A Mathematical Nature Walk
This means that, given a graph of c(l), we can find the group speed for a particular wave speed c0 directly from the graph. Here's how we do it: draw the tangent line to the c (l) graph at the point of interest, namely (c0 (l0), l0) and read off the ...
John A. Adam, 2011

10 NEWS ITEMS WHICH INCLUDE THE TERM «GROUP SPEED»

Find out what the national and international press are talking about and how the term group speed is used in the context of the following news items.
1
Louvre Hotels Group gets credit for investment and strategy
The influx of capital will reportedly help the group speed up the development and renovation of its brand-wide portfolio within the main ... «HOTELS, Jul 15»
2
Speedy Hire's share price plummets 35 per cent as chief executive …
Share in plant hire group Speed Hire tumbled more than 35 per cent today as the company warned on profits and announced chief executive ... «City A.M., Jul 15»
3
Block B's Zico And Older Brother Taewoon Team Up For The 1st …
In March 2015, Taewoon left idol boy group SPEED to pursue his own musical career. In tandem with his departure from the group, it was also ... «KpopStarz, Jun 15»
4
How can I control my breathing while running?
... Health Club in Washington Square, online at FixYourRun.com, and leads weekly group speed training sessions at PhillySurgeRunning.com. «Philly.com, Jun 15»
5
Do I have to start over after taking a few months off from training?
... progressive results towards their running goals. Kari currently works with runners online and at the track leading group speed session with ... «Philly.com, May 15»
6
Do I really need to incorporate hills into my training runs?
She currently works with runners online and at the track, leading group speed sessions. Kari's coaching philosophy is rooted in teaching her ... «Philly.com, May 15»
7
Meet the Run Coach: John Goldthorp
... clients at Optimal Sport Health Club in Washington Square., and leads weekly group speed training sessions at PhillySurgeRunning.com. «Philly.com, Mar 15»
8
Chargers appear cool toward Mission Valley stadium site
Faulconer agreed then to have the advisory group speed up its work. The Chargers and Raiders were responding to the possibility of the St. «FOXSports.com, Mar 15»
9
F-ve Dolls Becomes 4th K-Pop Girl Group To Disband In 2015
F-ve Dolls was the sister group to male idol group SPEED, which also originally began as an offshoot of Coed School. MBK Entertainment's ... «KpopStarz, Mar 15»
10
New England Patriot James Develin's Philly-area training helped …
After signing him up for the group speed and strength program, Carlisle's first goal was to slim down his new student. “He couldn't stand it,” ... «The Trentonian, Jan 15»

REFERENCE
« EDUCALINGO. Group speed [online]. Available <https://educalingo.com/en/dic-en/group-speed>. Apr 2024 ».
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