lifeblood (n.)
- anima
- antibody
- antigen
- atman
- blood
- bloodmobile
- bloodstream
- breath
- circulation
- erythrocyte
- globulin
- gore
- grume
- heart
- heartbeat
- hematics
- hematologist
- hematology
- hemoglobin
- humor
- ichor
- isoantibody
- leukocyte
- neutrophil
- opsonin
- phagocyte
- plasma
- serum
- soul
- spirit