microglial cell morphology trait Trait.ontology Any measurable or observable characteristic related to the shape, structure, color, or pattern of the small, migratory, phagocytic, interstitial cells derived from myeloid progenitor cells and found in the parenchyma of the central nervous system; microglia are scavengers, engulfing dead cells and other debris, and in Alzheimer's disease, microglia are found associated with dying nerve cells and amyloid plaques. VT:0000136 central nervous system glial cell morphology trait macrophage morphology trait