There are 2 definitions of cancer in English:

cancer1

Line breaks: can¦cer
Pronunciation: /ˈkansə
 
/

noun

[mass noun]
1A disease caused by an uncontrolled division of abnormal cells in a part of the body: he’s got cancer lung cancer
More example sentences
  • Members suffer from illnesses such as cancer, heart disease, diabetes and asthma.
  • Denos died last Wednesday after a long battle against cancer and the lung disease emphysema.
  • This may predispose people to conditions such as cancer and heart disease.
1.1 [count noun] A malignant growth or tumour resulting from an uncontrolled division of cells: most skin cancers are curable
More example sentences
  • Most stomach cancers form a tumour or an ulcer in the inner lining of the stomach.
  • In almost all bladder cancers, the cancer cells show a loss of part of the long arm of chromosome number 9.
  • In almost all cancers, the cancer cells are found to have a mutation in one or more genes.
Synonyms
malignant growth, cancerous growth, malignant tumour, tumour, malignancy
1.2 [count noun] An evil or destructive practice or phenomenon that is hard to contain or eradicate: racism is a cancer sweeping across Europe
More example sentences
  • Depression is a cancer of the soul, it eats away at the core of who you are and replaces it with doubt and pain and fear.
  • Those people are a cancer in our society and they deserve to be in jail.
  • the financial services industry is like a cancer in our society.
Synonyms
evil, blight, scourge, poison, canker, sickness, disease, pestilence, plague; rot, corruption

Origin

Old English, from Latin, 'crab or creeping ulcer', translating Greek karkinos, said to have been applied to such tumours because the swollen veins around them resembled the limbs of a crab. canker was the usual form until the 17th century Compare with Cancer.

Derivatives

cancerous

adjective
More example sentences
  • This scan cannot tell whether a tumour is benign or cancerous.
  • If angiogenesis can be prevented, the cancerous tissue cannot spread and may die.
  • You may be worried about radiation destroying healthy cells as well as the cancerous cells.

Definition of cancer in:

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Word of the day neoteny
Pronunciation: nēˈätn-ē
noun
retention of juvenile features in the adult animal

There are 2 definitions of cancer in English:

Cancer2

Line breaks: Can¦cer
Pronunciation: /ˈkansə
 
/
1 Astronomy A constellation (the Crab), said to represent a crab crushed under the foot of Hercules. It contains the globular star cluster of Praesepe or the Beehive.
1.1 (as genitive Cancri /ˈkaŋkri/) Used with preceding letter or numeral to designate a star in this constellation: the star Delta Cancri
2 Astrology The fourth sign of the zodiac, which the sun enters at the northern summer solstice (about 21 June).
2.1 (a Cancer) A person born when the sun is in the sign of Cancer.
More example sentences
  • Traditionally, the caring professions attract sun-sign Cancers, but professions connected with the past also appeal greatly, as does cookery.
  • I'm a Cancer, I hate avocados and most animals, and I'm in a band you've never heard of called The Like.
  • Unlike most Cancers, natives of this Sun-Moon sign do not feel the need to guard their emotions.

Origin

Latin.

Phrases

tropic of Cancer

Derivatives

Cancerian

Pronunciation: /-ˈsɪərɪən, -ˈsɛːrɪən/
noun & adjective
(sense 2).
More example sentences
  • True, a few Cancerians pretend they're curmudgeons; but even you'll realise life is easier - and more fun - if you wear your heart on your sleeve.
  • A Cancerian can be highly emotional and moody at this point.
  • Thanks to this remarkable service, I was able to determine that I'm not really a Cancerian at all, but a Scorpio.

Definition of cancer in: