The term phagocytose is a term that is used mainly in biology to indicate that phenomenon by which a cell phagocytes or assimilates another type of cell or element to consume or destroy it. Phagocytizing is a completely normal process in biology, but the term can also sometimes be used as a metaphor for phenomena in which two unequal parts are confronted, one being attacked by the other, consuming it until it is destroyed. In this sense, it is sometimes said that one person engulfs the other when it consumes them so much that it depletes or completely transforms them.
Phagocytosis or act of phagocytosis is that which develops between cells or elements of different types and that basically supposes that the cell surrounds with its cytoplasmic membrane (the one that is in contact with the outside) to the other element, usually smaller and weak, to consume it, destroy it or transform it. This alteration or destruction of the weaker cell or of the element that is normally an antibody that must be destroyed by the organisms, occurs inside the cell so that it is the internal elements of it that proceed to phagocytosis. In the event that the phagocytosed element is not destroyed but is simply transformed, the cell then returns it to the outside with its new physiological structure.
Phagocytosis is, as said, a common process in biology and has to do more than anything with the task of some cells that carry out this process in order to cancel or eliminate those elements that are harmful or dangerous to health. This action is what characterizes the immune system, but dangerous bodies are often too complex or large and cannot be properly engulfed by the cells of the body.