hydrothermal

hydrothermal

hydrothermal, ale, aux [ idrotɛrmal, o ] adj.
• 1866; de hydro- et thermal
♦ Didact. Qui se rapporte aux eaux thermales; qui résulte de l'action des eaux thermales. Source hydrothermale. Minéral hydrothermal, formé à partir des minéraux présents dans l'eau chaude.

● hydrothermal, hydrothermale, hydrothermaux adjectif Relatif à l'hydrothermalisme. (Les solutions hydrothermales enrichies en certains éléments sont responsables de nombreuses minéralisations filoniennes liées au magmatisme.)

⇒HYDROTHERMAL, -ALE, -AUX, adj.
Qui a rapport aux eaux minérales chaudes. Cure hydrothermale. Source hydrothermale (COLAS-CAB. 1968).
— GÉOL. Relatif aux eaux thermales. Solutions hydrothermales. Les phénomènes hydrothermaux qui véhiculent des corps en solution formeront à leur tour des minéraux filoniens (METTA, Pierres préc., 1960, p. 17). Les filons d'origine hydrothermale (CAILLÈRE, HÉNIN, Minér. argiles, 1963, p. 63).
Prononc. et Orth. : [], masc. plur. [-o]. Étymol. et Hist. 1877 (J.O., 13 mars, p. 1882 ds LITTRÉ Suppl.). Composé de hydro- et de thermal.

hydrothermal, ale, aux [idʀotɛʀmal, o] adj.
ÉTYM. 1866, in Rev. des cours sc., t. III, p. 695; de hydro-, et thermal.
❖
♦ Didactique.
1 Méd. Qui se rapporte aux eaux thermales. || Cure hydrothermale.
2 Géol. Qui résulte de l'action des eaux thermales. || Gîte métallifère hydrothermal. || Roche formée par voie hydrothermale (→ Granit, cit. 4).
❖
DÉR. Hydrothermalisme.

Encyclopédie Universelle. 2012.

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  • Hydrothermal — Hy dro*ther mal, a. [Hydro , 1 + thermal.] 1. Of or pertaining to hot water; used esp. with reference to the action of heated waters in dissolving, redepositing, and otherwise producing mineral changes within the crust of the globe. [1913… …   The Collaborative International Dictionary of English

  • hydrothermal — hydrothermal, ale (entrée créée par le supplément) (i dro tèr mal, ma l ) adj. Qui appartient aux sources d eau thermale. •   Le tableau complet et fidèle des richesses hydrothermales que la France possède, Journal offic. 13 mars 1877, p. 1882,… …   Dictionnaire de la Langue Française d'Émile Littré

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