carcinogen, carcinoma

Coffee drinkers are about to get some good news.

World Health Organization to Drop Coffee’s Status as Possible Carcinogen 咖啡非可能致癌物

Twenty-five years after classifying coffee as a possible carcinogen leading to bladder cancer, the World Health Organization’s cancer research arm has…

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carcinogen 

Pronunciation: /kɑːˈsɪnədʒ(ə)n/ 

NOUN 

A substance capable of causing cancer in living tissue.

Example sentences

• The combination of cigarette smoking and exposure to many occupational carcinogens increases risk of cancer.
• These chemicals include known or probable carcinogens, neurotoxins and reproductive toxins.
• The scientists also carried out animal trials on rats fed on ginger to establish if it could protect against cancer causing carcinogens.
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Origin

Mid 19th century: from an abbreviation of carcinoma + -gen.

carcinoma 

Pronunciation: /ˌkɑːsɪˈnəʊmə/ 

NOUN (plural carcinomas or carcinomata /ˌkɑːsɪˈnəʊmətə/)

A cancer arising in the epithelial tissue of the skin or of the lining of the internal organs. 皮膚或內臟的內層的上皮組織。

Example sentences

Derivatives

carcinomatous

ADJECTIVE

Example sentences

Origin

Early 18th century: via Latin from Greek karkinōma, from karkinos 'crab' (compare with cancer).

More

• cancer from Old English:
  The pattern of swollen veins around malignant tumours gave them the name cancer because they looked like the limbs of a crab—cancer in Latin. In English canker (Middle English) was the usual form for the disease until the 17th century, when canker became the term for various plant diseases. The medical term carcinoma (early 18th century) comes from karkinos, Greek for ‘crab’.