Queried GO terms:

  idGO:0048534   Detailed information
  namehemopoietic or lymphoid organ development
  namespacebiological_process
  def"The process whose specific outcome is the progression of any organ involved in hemopoiesis or lymphoid cell activation over time, from its formation to the mature structure. Such development includes differentiation of resident cell types (stromal cells) and of migratory cell types dependent on the unique microenvironment afforded by the organ for their proper differentiation." [GOC:add, ISBN:0781735149 "Fundamental Immunology"]
  synonym"haematopoietic or lymphoid organ development" EXACT []
  synonym"haemopoietic or lymphoid organ development" EXACT []
  synonym"hematopoietic or lymphoid organ development" EXACT []
  is_aGO:0048513 ! organ development
  relationshippart_of GO:0002520 ! immune system development

No monarch genes has this GO term.