
1) An ulceration 2) Become infected with a canker 3) Destroy slowly 4) Infect with a canker 5) Spreading sore 6) Ulcer 7) Ulceration
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https://www.crosswordclues.com/clue/canker

Canker and anthracnose generally refer to many different plant diseases of such broadly similar symptoms as the appearance of small areas of dead tissue, which grow slowly, often over years. Some are of only minor consequence, but others are ultimately lethal and therefore of major economic importance in agriculture and horticulture. Their causes ...
Found on
http://en.wikipedia.org/wiki/Canker

An ulcerous sore of the mouth and lips, not considered fatal today.
Found on
http://mckechnies.net/family/_references/medical.htm

An imprecise term usually used for a plant disease characterized (in woody plants) by the death of cambium tissue and resulting loss and/or malformation of bark, or (in non-woody plants) by the formation of sharply delineated, dry, necrotic, localized lesions on the stem. The term 'canker' may also be used to refer to the lesion itself, particularl...
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http://ppathw3.cals.cornell.edu/glossary/Defs_C.htm

• (n.) An obstinate and often incurable disease of a horse`s foot, characterized by separation of the horny portion and the development of fungoid growths; -- usually resulting from neglected thrush. • (v. i.) To be or become diseased, or as if diseased, with canker; to grow corrupt; to become venomous. • (n.) A kind of wild, worthle...
Found on
http://thinkexist.com/dictionary/meaning/canker/

disease of plants that is caused by numerous species of fungi and bacteria. Symptoms include round-to-irregular, sunken, swollen, flattened, or ...
Found on
http://www.britannica.com/eb/a-z/c/16

An area on soft or rotten woody stems or twigs that is caused by bacteria and fungi.
Found on
http://www.encyclo.co.uk/local/20077

1. In cats and dogs, acute inflammation of the external ear and auditory canal. ... See: aphtha. ... 2. In the horse, a process similar to but more advanced than thrush; the horny frog is generally under-run with a whitish, cheeselike exudate, and the entire sole and even the wall of the hoof may be undermined. ... 3. In man, an outmoded term for a...
Found on
http://www.encyclo.co.uk/local/20973

(kang´kәr) an ulceration, especially of the oral mucosa; see also recurrent aphthous stomatitis.
Found on
http://www.encyclo.co.uk/local/21001

A fungal disease; affected shoots die back often dark sunken areas on trunk or stems.
Found on
http://www.encyclo.co.uk/local/21081

Any skin ulcer or sore but as the derivation of the word is the same as that for cancer it may suggest skin cancer - Cancrum oris - Scarlet Fever
Found on
http://www.encyclo.co.uk/visitor-contributions.php
Can'ker (kăn'kẽr)
noun [ Middle English
canker ,
cancre , Anglo-Saxon
cancer (akin to Dutch
kanker , OHG
chanchar .), from Latin
cancer a cancer; or if a native word, confer Greek ... excrescence on tree, ... gangrene. Confer also Old French
ca...Found on
http://www.encyclo.co.uk/webster/C/16
Can'ker intransitive verb 1. To waste away, grow rusty, or be oxidized, as a mineral. [ Obsolete] « Silvering will sully and
canker more than gliding.
Bacom. »
2. To be or become diseased, or as if diseased, with canker; to grow corrupt; to become venomous. ...
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http://www.encyclo.co.uk/webster/C/16

Localized, dead, sometimes sunken, portion of the cambium and bark of branches or the bole of a tree, often caused by a pathogen. Many layers of dead callus folds surround some cankers as the tree repeatedly attempts to heal the dead portion, only to have the pathogen kill the callus folds.
Found on
http://www.fs.fed.us/r3/resources/health/field-guide/glossary.shtml

Type: Term Pronunciation: kang′ker Definitions: 1. In cats and dogs, acute inflammation of the external ear and auditory canal. 2. In the horse, a process similar to but more advanced than thrush. The horny frog is generally underrun with a whitish, cheeselike exudate, and the entire sole and even the wall of the hoof may be undermined. See: ...
Found on
http://www.medilexicon.com/medicaldictionary.php?t=13887

An ulcerous sore of the mouth and lips, not considered fatal today. Synonym aphthous stomatitis. See cancrum otis.
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http://www.olivetreegenealogy.com/misc/disease.shtml

In horticulture, canker is a kind of gangrenous disease to which fruit-trees especially are liable, beginning in the younger shoots and gradually extending to the trunk.
Found on
http://www.probertencyclopaedia.com/browse/BC.HTM

In medicine, a canker is a collection of small sloughing ulcers in the mouth, especially of children. Called also water canker.
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http://www.probertencyclopaedia.com/browse/EC.HTM

Chronic overgrowth of the horn-producing tissues of the foot, occurring most commonly in horses housed under unsanitary conditions.
Found on
http://www.thehorse.com/Glossary.xhtml?L=C

an ulcerous sore of the mouth and lips. Possibly includes herpes simplex infections commonly known as cold sores. Synonym: aphthous stomatitis. See cancrum otis. It seems to have the same meaning and origin as cancer, but denotes bad qualities in a lesser degree.
Found on
http://www.thornber.net/medicine/html/medgloss.html

[
n] - an ulceration (especially of the lips or living of the mouth) 2. [v] - become infected with a canker 3. [v] - infect with a canker
Found on
http://www.webdictionary.co.uk/definition.php?query=canker
canker sore noun an ulceration (especially of the lips or lining of the mouth)
Found on
https://www.encyclo.co.uk/local/20974

A destructive fungal disease of plants or an open wound in the stem of a tree or plant
Found on
https://www.weasdale.com/Glossary-of-Terms
No exact match found.