- congestion - excessive accumulation of blood or other fluid in a body part
--1 is a kind of symptom
--1 has particulars:hydrothorax; hemothorax, haemothorax; hyperemia, hyperaemia; pulmonary congestion - congestion, over-crowding - excessive crowding; "traffic congestion"
--2 is a kind of crowding
Derived form: verb congest1 - congestion, over-crowding - excessive crowding; "traffic congestion"