n pl , -mas, -mata
1 a paste or suspension consisting of a finely divided solid dispersed in a liquid
2 hot molten rock, usually formed in the earth's upper mantle, some of which finds its way into the crust and onto the earth's surface, where it solidifies to form igneous rock (C15, from Latin: dregs (of an ointment), from Greek: salve made by kneading, from massein to knead)
n a reservoir of magma in the earth's upper crust where the magma may reside temporarily on its way from the upper mantle to the earth's surface
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