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canker

1 of 2

noun

can·​ker ˈkaŋ-kər How to pronounce canker (audio)
1
a(1)
: an erosive or spreading sore
(2)
: an area of necrosis in a plant
also : a plant disease characterized by cankers
Citrus canker is caused by bacteria.
b
: any of various disorders of animals marked by chronic inflammatory changes
2
archaic : a caterpillar destructive to plants
3
chiefly dialectal : rust sense 1
4
: a source of corruption or debasement
suspicion is a canker that … will consume and waste all love R. Sibbes
5
chiefly dialectal : dog rose
cankerous adjective

canker

2 of 2

verb

cankered; cankering ˈkaŋ-k(ə-)riŋ How to pronounce canker (audio)

transitive verb

1
obsolete : to infect with a spreading sore
2
: to corrupt the spirit of
a relationship cankered by jealousy

intransitive verb

1
: to become infested with canker
2
: to become corrupted

Did you know?

Canker is commonly known as the name for a type of spreading sore that eats into the tissue—a use that obviously furnished the verb with both its medical and figurative senses. The word ultimately traces back to Latin cancer, which can refer to a crab or a malignant tumor. The Greeks have a similar word, karkinos, and according to the ancient Greek physician Galen, the tumor got its name from the way the swollen veins surrounding the affected part resembled a crab's limbs. Cancer was adopted into Old English, becoming canker in Middle English and eventually shifting in meaning to become a general term for ulcerations. Cancer itself was reintroduced to English later, first as a zodiacal word and then as a medical term.

Example Sentences

Verb such shameless ambulance chasing cankers the legal profession
Recent Examples on the Web
Noun
Many people note an association between canker sores and a common toothpaste ingredient called sodium lauryl sulfate. Dr. Keith Roach, oregonlive, 16 May 2022 The mainstay of apple canker control is pruning out the cankers. oregonlive, 23 Jan. 2022 Sometimes the canker is an area of swollen bark, and some cankers bleed sap. Beth Botts, chicagotribune.com, 20 Feb. 2022 The move came after potato wart, an unsightly canker that poses no threat to human health, was detected in two fields. Washington Post, 5 Feb. 2022 Remove cankered limbs from fruit and nut trees for control of diseases such as apple anthracnose, bacterial canker of stone fruit and Eastern filbert blight. oregonlive, 1 Feb. 2022 The canker, which can spread through infected potatoes, soil and equipment, had before the November discoveries been detected 33 times on Prince Edward Island since 2000. Washington Post, 5 Feb. 2022 Scout cherry trees for signs and symptoms of bacterial canker. oregonlive, 3 Jan. 2022 Remove cankered limbs from fruit and nut trees for control of diseases such as apple anthracnose and bacterial canker of stone fruit. oregonlive, 3 Aug. 2021
Verb
Start by removing all blighted twigs and cankered branches 6 to 10 inches below the edge of visible infection. Tim Johnson, chicagotribune.com, 1 Aug. 2019 See More

Word History

Etymology

Noun and Verb

Middle English, from Anglo-French cancre, chancre, from Latin cancer crab, cancer

First Known Use

Noun

before the 12th century, in the meaning defined at sense 1a(1)

Verb

14th century, in the meaning defined at transitive sense 1

Time Traveler
The first known use of canker was before the 12th century

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