Third-person singular simple present indicative form of canker.(verb)
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Use "cankers" in a sentence
"The number of beetle galleries and associated dead bark, called cankers, in a tree is enormous."
"It would need a long article to place the reader _au courant_ with the chief results of what is known of these diseases, and I must be content here with the bare statement that these "cankers" are in the main due to local injury or destruction of the cambium."
"Then there is a class of diseases which commence in the bark or cortex of trees, and extend thence into the cambium and timber: some of these "cankers," as they are often called, are proved to be due to the ravages of fungi, though there is another series of apparently similar "cankers" which are caused by variations in the environment -- the atmosphere and weather generally."