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.

crater

/cra·ter/ (kra´ter) an excavated area surrounded by an elevated margin.

crater

a pitlike depression, such as where an ulcer has been surgically removed.

crater

an excavated area surrounded by an elevated margin, as caused by ulceration.
References in periodicals archive ?
Earlier estimates pegged the cratering rate at three to 10 times more craters per year.
We sometimes suspected that Teflon [R] or other plastic shavings or particles from stirrer bushings were the cause of cratering, but they almost never were.
From studies of lunar surface images and terrestrial craters in the 1960s to investigations of extraterrestrial samples and a shock- metamorphism experimental database, Gibson (Impact Cratering Research Group, geosciences, U.