precipitation

Lemma

precipitation

Etichetta di dominio

EN

Etichetta grammaticale

n.

Definizione

Thin dusting deposited on the inside surface of red-wine containers during the ageing process. 1

Nota

Precipitates, solids which are deposited on the bottom of barrels, casks, tanks or vats by wine stored in them. Technically, precipitates are solids which deposit from solutions because of reactions or temperature changes, and differ from sediments, which are suspensions of solids which settle from the mixture when agitation ceases. Technically, therefore, the stem, pulp, and skin fragments as gross lees are not precipitates, while subsequent deposits of tartrates and oxidized phenolics do qualify as precipitates. Practical wine-makers, however, tend to classify both groups as precipitas, along with colloids. 2

Contesto

Most white wines lack sufficient tannins to cause initial protein precipitation. 3

Trascrizione fonetica

UK [prɪˌsɪpɪˈteɪʃən], US [pri:ˌsɪpɪˈteɪʃən] 4

Sinonimi e Antonimi
ND
Abbreviazioni
ND
Etimologia

1502, "sudden haste," from M.Fr. precipitation (15c.), from L. præcipitationem (nom. præcipitatio) "act or fact of falling headlong, haste," from præcipitare "fall, be hasty," from præceps "steep". Meaning "act of falling from a height" is attested from 1612. Meteorological sense of "rain, snow, dew, etc." is from 1675. Precipitous "headlong" is from 1646; precipitate (adj.) "hasty" is attested from 1654. 5

Etichetta di paese
ND
Ente

Università degli Studi di Genova, Facoltà di Lingue e Letterature Straniere, Corso di Laurea per Traduttori e Interpreti

Data della scheda
Thu Mar 13 00:00:00 2008
Autore

Silvia Franzoni, rev. Chiara Barbagianni

Fonti

1 : «http://www.bluestemwine.com/documents/ColorandTanninPrecipitationinRedWines.pdf», (17/11/2011)

2 : Robinson J., The Oxford Companion to WINE, Oxford, Oxford University Press, 1994, p. 756.

3 : «http://www.fst.vt.edu/extension/enology/downloads/ProteinS.pdf», (17/11/2011)

4 : «http://dictionary.cambridge.org/dictionary/british/precipitation_1?q=precipitation», (17/11/2011)

5 : «http://www.etymonline.com/index.php?search=precipitation&searchmode=none», (02/03/2008)

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