Some people only have the problem when they run water in a sink or a bathtub. The source of the odor in almost all of these instances is a buildup of biofilm on the sides of the pipes that connect the sink or fixture to the actual P-shaped trap under the fixture.
Subsided is defined as  calmed down or sunk to a lower level. When the noise of a crowd dies down, this is an example of when the noisesubsided.
Definition of suppress. 1  transitive verb. 2  1 : to put down by authority or force : subdue suppress a riot. 3  2 : to keep from public knowledge: such asa : to keep secretb : to stop or prohibit the publication or revelation of suppress the test results.  3a : to exclude from consciousnessb : to keep from giving vent to : check suppressed her anger.