Medical Definition of MACROPHAGE. : a phagocytic tissue cell of the immune system that may be fixed or freely motile, is derived from a monocyte, functions in the destruction of foreign antigens (as bacteria and viruses), and serves as an antigen-presenting cellâsee histiocyte, mononuclear phagocyte system. a phagocytic tissue cell of the immune system that may be fixed or freely motile, is derived from a monocyte, functions in the destruction of foreign antigens (as bacteria and viruses), and serves as an antigen-presenting cell â compare histiocyte. â macÂ·roÂ·phagÂ·ic \Ëma-krÉ-Ëfa-jik\ adjective.
Definition of 'Commodity Funds'. Definition: Commodity funds are funds which basically invest in commodities, such as gold, oil or livestock. They also invest in commodity futures and options. Some commodity funds invest in the stocks of companies, like gold funds which invest in the stocks of gold mining companies. Description: As the name suggests, a commodity market covers various kinds of products such as gold, oil and various agri products, among others.
Commodity broker. A commodity broker is a firm or individual who executes orders to buy or sell commodity contracts on behalf of clients and charges them a commission. A firm or individual who trades for his own account is called a trader. Commodity contracts include futures, options, and similar financial derivatives. Clients who trade commodity contracts are either hedgers using the derivatives markets to manage risk, or speculators who are willing to assume that risk from hedgers in hopes of a profit.