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maar

American  
[mahr] / mɑr /

noun

Geology.
  1. a circular volcanic landform resulting from explosive ash eruptions.


maar British  
/ mɑː /

noun

  1. (sometimes capital) a coneless volcanic crater that has been formed by a single explosion

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

maar Scientific  
/ mär /
  1. A broad, shallow, generally flat-floored volcanic crater that is often filled with water. Maars usually form from explosive eruptions caused by the heating and boiling of groundwater that is invaded by rising magma.


Etymology

Origin of maar

First recorded in 1820–30, maar is from the German word Maar a depression filled with standing water (especially in the Eifel district)

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Study co-author Emeritus Professor Daphne Lee, of Otago's Department of Geology, says they add to the expanding insect fauna revealed in the maar.

From Science Daily

There is a saying at the heart of Dutch culture: ‘‘doe maar gewoon,’’ or ‘‘just be normal.’’

From New York Times

Volcano Island alone has 47 craters and 4 maars - volcanic craters that form when hot magma comes into contact with shallow ground water, producing a violent steam explosion.

From BBC

The area shown here has distinctive landforms that include explosively-formed maar craters, lava domes built by viscous lava flows, and scoria or cinder cones formed around a single volcanic vent.

From The Guardian

Maar”—and here I added two nice little local idioms from the rich stores of my memory—“maar—U komt pas te kijken.”

From Project Gutenberg