Development from a lower or simpler to a higher or more complex form; evolution, An abnormal mass of tissue, such as a tumor, growing in or on a living organism, The process of growing; gradual natural increase, as of an animal or vegetable body; specifically, the process of developing from a germ, seed, or root to maturity, adjective_ Expected to have or investing in businesses expected to have higher-than-average increases in revenues and returns,