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.
Radiation is a form of energy transport consisting of electromagnetic waves traveling at the speed of light. Temperature is a measure of the average heat or thermal energy of the molecules in a substance. The atoms and molecules in a substance do not always travel at the same speed. This means that there is a range of energy (the energy of motion) among the molecules. In a gas, for example, the molecules are traveling in random directions at a variety of speeds - some are fast and some are slow. Sometimes these molecules collide with each other.