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n. volcanic crater made by an explosion
The following video provides you with the correct English pronunciation of the word "maar", to help you become a better English speaker.
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A maar is a broad, low-relief volcanic crater that is caused by a phreatomagmatic eruption, which is an explosion caused by groundwater coming into contact with hot lava or magma. A maar characteristically fills with water to form a relatively shallow crater lake. The name comes from the local Moselle Franconian dialect of Daun, where it is in turn derived from Latin mare (sea). Maars are shallow, flat-floored craters that scientists interpret as having formed above diatremes as a result of a violent expansion of magmatic gas or steam; deep erosion of a maar presumably would expose a diatreme. Maars range in size from across and from deep, and most are commonly filled with water to form natural lakes. Most maars have low rims composed of a mixture of loose fragments of volcanic rocks and rocks torn from the walls of the diatreme.
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1. a flat-bottomed volcanic crater that was formed by an explosion; often filled with water
(hypernym) volcanic crater, crater
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conj. but, only
adv. only, solely, however
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but, however, nevertheless, yet
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