Definitions for "PVS"
PERSISTENT VEGETATIVE STATE. A state following very severe injury in which patients remain speechless and devoid of any meaningful contact with others. Patients show sleep/wake cycles but no evidence of conscious awareness. The condition is due to very extensive damage to the fibres under the cerebral cortex. PVS should be distinguished from the LOCKED IN STATE (qv).
Persistent vegetative state. a state in which the cerebral cortex - the thinking, feeling part of the brain - stops working. People in this condition cannot understand anything that is going on around them and cannot communicate or make voluntary movements. However, the more primitive part of their brain - the brain stem - is largely unaffected.
Persistent Vegetative State. A long-standing condition in which the patient utters no words and does not follow commands or make any response that is meaningful. See Persistent Unawareness.
Participatory variety selection. Selection between stable lines or populations involving farmers.
Acronym for posterior vitreous separation.
Potential Viewable Set. Refers to those world triangles that might be seen from a position in the game world.
Keywords:  fatigue, viral, rough, chronic, shorter
Stands for Post Viral Syndrome. Rough synonym for Chronic Fatigue Syndrome, but tends to be used where the illness is of a shorter duration and less severe.
Keywords:  sight, passive, viewing
passive viewing sight
Keywords:  vacuum, ported, switch
Ported Vacuum Switch
Keywords:  steel, intended, vessels, pressure, end
Pressure Vessel Steel. Product intended for pressure vessels and similar end use applications.