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magma

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magma

Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++
Related topics: Geology
mag·ma /ˈmæɡmə/ noun [uncountable]  technicalHEG hot melted rock below the surface of the Earth 岩浆;熔岩4  See picture of 见图 VOLCANO5 see picture at 见图 volcano
Examples from the Corpus
magmaPastures of fresh magma flows known as pillow lavas and the rubble of frequent earthquakes line the floor of this stone trough.Hot magma bubbled up through the older parts of Laurentia west of Hudson Bay, signaling the start of continental rifting.Igneous intrusions injected as a mobile magma may show sharp contacts with surrounding, or country, rocks.Some attributed each crater to a bursting giant bubble of gases escaping from a vast ocean of magma.Eruptions can occur through either fissures or vents, again depending on magma type.The south-southeast-trending increase is most probably the result of a shallow magma intrusion.Different minerals in the magma create different structures.A single deep connection to the magma supply maintains the heat input by convection.
Origin magma (1400-1500) Latin Greek, from massein to press and mix together
mag·ma nounChineseSyllable
hot surface of rock the the Corpus below melted


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magma
magma /ˈmæɡmə/ noun [uncountable]
 Date: 1400-1500
 Language: Latin
 Origin: Greek, from massein 'to press and mix together'
technical hot melted rock below the surface of the Earth


magmaBrE /ˈmæɡmə/ 🔊NAmE /ˈmæɡmə/ 🔊 noun [uncountable] (specialist) very hot liquid rock found below the earth's surface 岩浆