rarefaction


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rar·e·fac·tion

 (râr′ə-făk′shən)
n.
1. The condition of being rarefied.
2.
a. A decrease in density and pressure in a medium, such as air, caused by the passage of a sound wave.
b. The region in which this occurs.

rar′e·fac′tive adj.

rarefaction

(ˌrɛərɪˈfækʃən) or

rarefication

n
the act or process of making less dense or the state of being less dense
ˌrareˈfactional, ˌrarefiˈcational, ˌrareˈfactive adj

rar•e•fac•tion

(ˌrɛər əˈfæk ʃən)

n.
1. the act or process of rarefying.
2. the state of being rarefied.
rar`e•fac′tion•al, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.rarefaction - a decrease in the density of something; "a sound wave causes periodic rarefactions in its medium"
concentration - increase in density
Translations
rarefação

rarefaction

[ˌrɛərɪˈfækʃən] Nrarefacción f

rarefaction

nDünne f; (fig)Exklusivität f
References in classic literature ?
For some days past, Captain Bonneville had been made sensible of the great elevation of country into which he was gradually ascending by the effect of the dryness and rarefaction of the atmosphere upon his wagons.
3%), erythrophagocytosis (57%), lymphoid hyperplasia (55%), central follicular necrosis (49%), lymphoid rarefaction (45%), hemosiderosis (37%), and inflammatory infiltrate of plasma cells (6%).
The rarefaction curve is an effective tool to survey the species composition of samples and to predict the relative abundance of samples.
6) 0 (0) 0 (0) 0 (0) Cortical erosion 0 (0) 2 (50) 0 (0) 0 (0) Rarefaction 12 (54.
The key issues for Mena economies are the strengthening of the US dollar, the possible rarefaction of the currency outside the United States following the repatriation of war chests by US businesses and the rise in interest rates.
Nous serons bientot 9 milliards de personnes sur terre a l'horizon 2050et les ressources en eaux connaitront une rarefaction consequente.
Models and estimators linking individual-based and sample-based rarefaction, extrapolation and comparison of assemblages.
Species data were analyzed for diversity and richness using the Shannon and Margalef indices; rarefaction analysis was used to compare richness between sites; whilst Detrended Correspondence Analysis (DCA) was used to determine floristic pattern.
Deposition of AGEs and microvascular rarefaction are operative in both the categories (Fig.
En se basant sur les donnees collectees dans le cadre de l' Initiative regionale de la FAO sur la rarefaction des ressources en eau dans la region, le rapport montre que le changement climatique devrait affecter la securite alimentaire en termes de disponibilite, d'acces, de stabilite et d'utilisation.
Le projet de loi a pour finalite de mieux maitriser les depenses de l'Etat par ces temps de rarefaction des ressources financieres et de jeter les bases du nouveau modele de croissance economique, a travers une batterie de mesures visant a encourager l'investissement productif et a mettre de l'ordre dans le secteur du commerce exterieur, notamment le volet relatif aux importations.