hemolymphoid system trait haemolymphoid system trait hemolymphatic system trait Any measurable or observable characteristic related to the blood forming organs and tissues and the system of lymphoid channels and tissues that drains extracellular fluid from the periphery via the thoracic duct to the blood. hematolymphoid system trait caripark Trait.ontology 2010-05-19T10:57:30Z VT:0010248 organ system trait