. "\"The process whose specific outcome is the progression of a chaeta over time, from its formation to the mature structure. A chaeta is a sensory multicellular cuticular outgrowth of a specifically differentiated cell.\" [FBbt:00005177, GOC:bf, GOC:cjm, GOC:dos, GOC:isa_complete]" . . "chaeta development" . . "bristle development" .