Medical Definition of microglia
: glia consisting of small cells with few processes that are scattered throughout the central nervous system, that are of mesodermal origin and are thought to be derived from fetal monocytes, and that have a phagocytic function as part of mononuclear phagocyte system
Seen and Heard
What made you want to look up microglia? Please tell us where you read or heard it (including the quote, if possible).