cancer
Americannoun
genitive
Cancri-
Pathology.
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a malignant and invasive growth or tumor, especially one originating in epithelium, tending to recur after excision and to metastasize to other sites.
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any disease characterized by such growths.
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any evil condition or thing that spreads destructively; blight.
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(initial capital letter) the Crab, a zodiacal constellation between Gemini and Leo.
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Astrology. Cancer,
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the fourth sign of the zodiac: the cardinal water sign.
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a person born under this sign, usually between June 21 and July 22.
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tropic of Cancer. tropic1a
noun
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astronomy a small faint zodiacal constellation in the N hemisphere, lying between Gemini and Leo on the ecliptic and containing the star cluster Praesepe
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astrology
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Also called: the Crab. the fourth sign of the zodiac, symbol ♋, having a cardinal water classification and ruled by the moon. The sun is in this sign between about June 21 and July 22
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Also called: Moonchild. a person born during a period when the sun is in this sign
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See tropic
adjective
noun
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any type of malignant growth or tumour, caused by abnormal and uncontrolled cell division: it may spread through the lymphatic system or blood stream to other parts of the body
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the condition resulting from this
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an evil influence that spreads dangerously
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A disease characterized by any of various malignant neoplasms composed of abnormal cells that tend to proliferate rapidly and invade surrounding tissue. Without treatment such as chemotherapy or radiation, cancer cells can metastasize to other body sites and cause organ failure and death.
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A malignant tumor.
Usage
What does Cancer mean? Cancer is the name of a constellation that’s interpreted as resembling a crab. It’s sometimes referred to as The Crab.A constellation is a group of stars that appear near each other in the sky—especially a group that has been given a name. Cancer is considered one of the 12 zodiacal constellations—constellations that appear within a particular portion of the sky called the zodiac.In astronomy, the zodiac is the band of sky along which the paths of the sun, the moon, and the planets appear to move.Despite its basis in astronomy, the word zodiac is mainly associated with and most often used in the context of astrology, the nonscientific practice in which the positions of heavenly bodies at certain times are thought to influence or be correlated with human behavior and events. In astrology, zodiac refers to a diagram (often a circular one) representing the zodiac belt and showing the symbols associated with each of the 12 constellations or sections, which are called the signs of the zodiac. Cancer is one of these signs. It is situated between Gemini and Leo and is considered the fourth sign of the zodiac.The other signs of the zodiac are Aries, Taurus, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, and Pisces.The position of the sun in a particular portion of the zodiac at the moment of a person’s birth is thought to correlate with their personality. This is what people are referring to when they talk about their zodiac sign (or star sign or often just sign). People whose sign is Cancer are those born between June 21 and July 22.In the context of the zodiac, the word Cancer can also be used as a noun to refer to someone who is born during this time, as in I was born in early July, so I’m a Cancer. The word Cancerian can be used to mean the same thing. It can also be used as an adjective form of Cancer.Example: I’m a Cancer, but I don’t think I fit into the sensitive Cancer stereotype.
Closer Look
The human immune system often fights off stray cancer cells just as it does bacteria and viruses. However, when cancer cells establish themselves in the body with their own blood supply and begin replicating out of control, cancer becomes a threatening neoplasm, or tumor. It takes a minimum of one billion cancer cells for a neoplasm to be detectable by conventional radiology and physical examinations. Cancer, which represents more than 100 separate diseases, destroys tissues and organs through invasive growth in a particular part of the body and by metastasizing to distant tissues and organs through the bloodstream or lymph system. Heredity, lifestyle habits (such as smoking), and a person's exposure to certain viruses, toxic chemicals, and excessive radiation can trigger genetic changes that affect cell growth. The altered genes, or oncogenes, direct cells to multiply abnormally, thereby taking on the aggressive and destructive characteristics of cancer. Treatments such as surgery, chemotherapy, and radiation are effective with many cancers, but they also end up killing healthy cells. Gene therapy attempts to correct the faulty DNA that causes the uncontrolled growth of cancer cells. Researchers are investigating other treatments, such as immunotherapy (the stimulation of the body's natural defenses), vectorization (aiming chemicals specifically at cancer cells), and nanotechnology (targeting cancer cells with minute objects the size of atoms).
Discover More
The term cancer is often used to describe a nonmedical condition that is undesirable, destructive, and invasive: “Watergate was a cancer on the presidency.”
Other Word Forms
- cancered adjective
- cancerous adjective
- cancerously adverb
- cancerousness noun
- noncancerous adjective
- uncancerous adjective
Etymology
Origin of cancer
First recorded in 1350–1400; Middle English, from Latin: literally, “crab”; Latin stem cancr-, dissimilated from unattested carcr-, akin to Greek karkínos, Sanskrit karkata “crab”; canker
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Hep B increases risk of cirrhosis and liver cancer later in life.
"It wouldn't have cured my cancer, but it could have given me a couple more months," said Collins, who said he has been given between 12-18 months to live.
From BBC
Over time, it can worsen into cirrhosis or liver cancer.
From Science Daily
At Johnson & Johnson, momentum is coming from immunology and oncology, led by treatments such as Tremfya for autoimmune disease and a growing cancer franchise.
"The protein actively intervenes in key metabolic and growth signaling pathways, thereby linking two fundamental cancer mechanisms."
From Science Daily
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.