DEFINITION of 'Windfall Tax'. A tax levied by governments against certain industries when economic conditions allow those industries to experience above-average profits. Windfall taxes are primarily levied on the companies in the targeted industry that have benefited the most from the economic windfall, most often commodity-based businesses.
acute leukemia leukemia in which the involved cell line shows little or no differentiation, usually consisting of blast cells; two types are distinguished, acute lymphoblastic leukemia and acute myelogenous leukemia. acute granulocytic leukemia acute myelogenous leukemia.
Endosteum is a lining that covers the inner surfaces of the long bones (the medullary cavity and hollow spaces in the spongy bone). It is mainly composed of progenitor cells that can develop into bone-producing cells (osteoblasts), and a small amount of connective tissue.. Bone Growth and Repair. In children 1,16, osteoblasts in the inner layer of the periosteum (cambium) produce new bone and thus enable the growth of the bone in the width or periosteal or appositional bone growth 1,16. Periosteal bone growth, to some extent, probably also occurs in adults 31.