tumor
/'tju:mə/ Cách viết khác : (tumour) /'tju:mə/
Học thuậtThân thiện
Definition
- Noun:
- An abnormal new mass of tissue that serves no purpose: A "tumor" is a growth of cells in the body that is not normal. This mass, also called a neoplasm, forms when cells divide and grow more than they should or do not die when they should. Tumors can be benign (not cancerous) or malignant (cancerous).
Usage
- The word "tumor" is a countable noun. It is used to describe a specific, localized growth.
- It is a medical and scientific term. In everyday conversation, people might use the simpler word "growth" or "lump."
- The spelling "tumour" is standard in British English, while "tumor" is standard in American English.
Examples
- Noun:
- The scan revealed a small tumor in her lung. (The scan showed an abnormal mass of tissue in her lung.)
- Benign tumors are usually not life-threatening. (Non-cancerous growths are usually not dangerous to life.)
- The surgeon successfully removed the brain tumor. (The doctor cut out the abnormal mass from the brain.)
Advanced Usage
- "Tumor burden": This refers to the total amount of tumor tissue (number of cancer cells, size of tumors) in the body.
- The new treatment aims to reduce the patient's tumor burden.
- "Tumor marker": A substance found in blood, other body fluids, or tissues that can indicate the presence of cancer.
- Doctors checked his blood for specific tumor markers.
Variants and Related Words
- Tumour (n): The British English spelling of "tumor."
- Tumorous (adj): Relating to or resembling a tumor.
- The biopsy showed tumorous tissue.
- Neoplasm (n): The formal medical term for a new, abnormal growth of tissue (a synonym for tumor).
- Oncology (n): The branch of medicine that deals with the study and treatment of tumors (cancer).
Synonyms
- Growth: A general term for something that has grown, often used instead of "tumor" in non-medical language.
- Neoplasm: The technical term for a new and abnormal growth of tissue.
- Lump: A shapeless mass; often used to describe a tumor that can be felt under the skin.
Antonyms
- Healthy tissue: Normal, functioning cells in the body.
- Atrophy: The wasting away or decrease in size of an organ or tissue, which is the opposite of abnormal growth.
Common Collocations and Phrases
- Benign tumor: A tumor that is not cancerous; it grows slowly and does not spread.
- Malignant tumor: A cancerous tumor; it can invade nearby tissues and spread to other parts of the body (metastasize).
- Brain tumor: An abnormal mass of tissue in the brain.
- Tumor removal / resection: The surgical operation to take out a tumor.
- Tumor growth: The process of a tumor increasing in size.
Noun
- an abnormal new mass of tissue that serves no purpose