You will hear this sound at the apex in the left lateral position. Use the bell of the stethoscope. Normal in children and young adults. It is abnormal when it persists in a person. Usually abnormal in adults over the age of 40 and can be an early sign of heart disease or congested heart failure.
verb (used without object), subsided, subsiding. 1. to sink to a low or lower level. 2. to become quiet, less active, or less violent; abate: The laughter subsided. 3. to sink or fall to the bottom; settle; precipitate: to cause coffee grounds to subside. Origin of subside.
Princeton's WordNet(0.00 / 0 votes)Rate this definition: 1  decrease, diminish, lessen, fall(verb) decrease in size, extent, or range. The amount of homework decreased towards the end of the semester; The cabin pressure fell dramatically; her weight fell to under a hundred pounds; his voice fell to a whisper. decrease, lessen, minify(verb) make smaller. He decreased his staff. subside, lessen(verb) wear off or die down. The pain subsided.