What Types of Radiation Are There? The radiation one typically encounters is one of four types: alpha radiation, beta radiation, gamma radiation, and x radiation. Neutron radiation is also encountered in nuclear power plants and high-altitude flight and emitted from some industrial radioactive sources. Alpha Radiation.
Fatigue: A condition characterized by a lessened capacity for work and reduced efficiency of accomplishment, usually accompanied by a feeling of weariness and tiredness. Fatigue can be acute and come on suddenly or chronic and persist.
Chambers 20th Century Dictionary(0.00 / 0 votes)Rate this definition: Fatigue. fa-tÄgâ², n. weariness from labour of body or of mind: toil: military work, distinct from the use of arms.âv.t. to reduce to weariness: to exhaust one's strength: to harass.âpr.p. fatiguâ²ing; pa.p. fatiguedâ².âadj.