What is the meaning of Oncology and Carcinoma ?

These words are related to the DEADLY disease CANCER. I am a volountary worker to help the patients of this disease. I am doing it in my area and want to know how much my friends in this forum are all aware of these words and how they can can contribute. I do not want to collect any money or contributions i kind for this, but I want workers world wide to help the sufferers to educate people about CANCER and I invite answers from persons serius about this. I want the world to know more about this disease becuse CANCER IS STILL AN ENIGMA-

I invite more and more answers which explains the terminologies and educative to people all over the world. I have gone through the entire web for these including the valuable pages of American Cancer Institute and I am aware of all the detials. I choose this forum as a contribution to educate the people world over. Do not answer just to gain 2 points. Answer to the world an the affected.

Oncology is the branch of medicine that studies tumors (cancer) and seeks to understand their development, diagnosis, treatment, and prevention. A physician who practices oncology is an oncologist. The term originates from the Greek onkos (慰纬魏慰蟼), meaning bulk, mass, or tumor and the suffix -ology, meaning "study of."
In medicine, carcinoma is any cancer that arises from epithelial cells. It is malignant by definition: carcinomas invade surrounding tissues and organs, and may spread to lymph nodes and distal sites (metastasis). Carcinoma in situ (CIS) is a pre-malignant condition, in which cytological signs of malignancy are present, but there is no histological evidence of invasion through the epithelial basement membrane.
Please see the web pages for more details on Oncology and Carcinoma.

Oncology is a place, usually in the hospital, that cancer patients go to receive cancer treatments or the study of cancer itself.
Carcinoma means "with cancer".
There are many other words related to cancers. Going to a library or checking out one of the many cancer sites may help you with the terminology better. Good luck and may God Bless you for your work!!

Oncology is the branch of medicine that studies cancer. and Carcinoma means cancer(malignant by definition).

Oncology:
1. the branch of medical science dealing with tumors, including the origin, development, diagnosis, and treatment of malignant neoplasms.
2. the study of cancer.

Carcinoma:
a malignant and invasive epithelial tumor that spreads by metastasis and often recurs after excision; cancer.

oncology derives from the greek oncos(tumor), and logos, so it is the science dealing with cancers and tumors.
carcinoma, also from the greek carcinos (cancer), is a cancerous tumor.