CONGESTION

n. overcrowding; abnormal accumulation (of blood, fluid, etc.)

Congestion is a state of excessive accumulation or overfilling or overcrowding. This general definition is broadly correct across all uses of the word. However in specific contexts the word has a more precise definition and usage. Congestion is the worst drawback of networks.In telecommunication, the term has the following meanings:In a communications switch, a state or condition that occurs when more subscribers attempt simultaneously to access the switch than it is able to handle, even if unsaturated. In a saturated communications system, the condition that occurs when an additional demand for service occurs.Network congestion.In medicine and pathology the term is used to describe excessive accumulation of blood or other fluid in a particular part of the body, such as nasal congestion.See the traffic congestion article for a discussion of congestion in transportation.In electric power transmission it means the inability to supply an area with the cheapest available generation due to a binding constraint on the point to point transmission route. Some plant or equipment could be causing the constraint due to thermal overload or security limits being potentially breached.
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Congestion /con·ges·tion/ abnormal accumulation of blood in a part.conges´tive hypostatic congestion congestion of a dependent part of the body or [more]Congestion - Community and Resources

Noun
1. excessive accumulation of blood or other fluid in a body part
(hypernym) symptom
(hyponym) hydrothorax
2. excessive crowding; "traffic congestion"
(synonym) over-crowding
(hypernym) crowding
(derivation) clog, choke off, clog up, back up, congest, choke, foul

n. congestion, overcrowding