crater


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crater

 [kra´ter]
an excavated area surrounded by an elevated margin, such as is caused by ulceration.

cra·ter

(krā'ter),
The most depressed, usually central portion of an ulcer.
References in periodicals archive ?
Aside from the size of the crater, the researchers also noticed that a portion of Lomonosov's wall or rim was missing, which suggests that it was destroyed following the displacement of a huge body of water.
Residents say they have witnessed people and livestock plunge to their deaths as there is no fence around the crater."We have had cases in which our livestock have fallen into the crater.
Comparing this photo with one of the same area that was taken before the strike confirmed the appearance of a 10-meter-diameter crater. "It is the largest crater within our expectations," said Kobe University Prof.
They have usually done so by studying the craters and dating the rocks around them.
Caption: Tswaing crater in South Africa, as seen from a plane
The second Meteor Crater Experiment (METCRAX II) meteorological field campaign was conducted in October 2013 in and around the Barringer Meteorite Crater (also known as Meteor Crater) near Winslow, Arizona (Fig.
"The ground deformation survey indicated that there's magma ascending at the crater. The crater glow may indicate that there's a magma or gas extruding.
This is the last inhabited spot before we reach the crater, at a mere 32.7 kms.
The team of NASA and university scientists using laser light from LRO's laser altimeter examined the floor of Shackleton crater. They found the crater's floor is brighter than those of other nearby craters, which is consistent with the presence of small amounts of ice.
"Craters and Cratering" was the title of the first Coatings Clinic, published in April 2004 [see JCT Coatings Tech, 1(4), 8 (2004)].
Previous estimates suggested that the 800-metre wide, 200 metre-deep Ubehebe Crater (above) was around 6,000 years old.