blood donor 
noun
A person who gives blood for transfusion.This type of training modules will help blood transfusion services in India to train their blood donor motivators....
- A 50-year-old male who had a hernia repair seven months ago is a prospective blood donor.
- If you would like to register as a potential bone marrow donor on the British Bone Marrow Registry, you must also be a regular blood donor.
- differentia
- differentiability
- differentiable
- differential
- differential calculus
- differential coefficient
- differential diagnosis
- differential equation
- differential gear
- differential lock
- differentially
- differential operator
- differential windlass
- differentiate
- differentiation
- differentiator
- differently
- differently abled
- differentness
- different strokes for different folks
- difficult
- difficultly
- difficultness
- difficulty
- diffidence