n a phase of the leukemic state marked by proliferation of leukocytes within the blood-forming tissues but without an increase in the white blood cell count: relatively few precursor cells are found in the blood smear until the phase passes and the blood becomes flooded with white cells.
energy. power that may be translated into motion, overcoming resistance, or effecting physical change; the ability to do work. Energy assumes several forms; it may be thermal (in the form of heat), electrical, mechanical, chemical, radiant or kinetic. In doing work, the energy is changed from one form to another or to several forms. In these changes some of the energy is 'lost' in the sense that it cannot be recaptured and used again.
But what is energy? Answering that question is surprisingly hard, because it comes in a lot of different forms. Energy can be stored in food. Energy can be related to movement. But what about nuclear energy, or sound energy, or light energy? These all seem a little bit different. The physics definition of energy is that it's the ability to do work. Energy is like a currency that can be spent when we want to do work. If we have plenty of energy in our bodies, we can apply more forces over longer distances and do more work than if we had less energy.