Is the energy that is used and/or produced by living organisms.
It is the fabric that forms the software side of organisms, including but not limited to thought, emotions, and consciousness.
The closest translation into traditional terms would be "Qi" (China) and "Prana" (India)
Many people mistakenly use the term Bioenergy for the energy they obtain by burning or consuming the remains of living organisms, but the correct term for that would be Biofuel. When you consume or burn anything to obtain energy, you are turning it into fuel.
The study of Bioenergy is studying how Bioenergy can influence the condition and function of living organism.