Distribution of the Earth's water. Earth is known as the Blue Planet because 71 percent of the Earth's surface is covered with water. Water also exists below land surface and as water vapor in the air. Water is a finite source. The bottled water that is consumed today might possibly be the same water that once trickled down the back of a wooly mammoth.
neoplasm, n (tumor), an abnormal mass of tissue, the growth of which exceeds and is uncoordinated with that of the normal tissues. It persists in the same excessive manner after cessation of the stimuli that evoked the change. Benign and malignant forms are recognized. See also neoplasia and tumor.
Neoplasm Definition. The term neoplasia refers to a mass that has developed due to abnormal cell or tissue growth. Neoplasia refers to various types of growths including non-cancerous or benign tumors, precancerous growths, carcinoma in situ and malignant or cancerous tumors. The term neoplasm is derived from a combination of the Greek words neo meaning new and plasma meaning formation.