Final answer:
Bradycardia is the medical term for a slow heartbeat, which occurs when an adult's resting heart rate falls below 60 beats per minute.
Step-by-step explanation:
The term bradycardia refers to the condition of a slow heartbeat. For an adult, the normal resting heart rate (HR) ranges from 60 to 100 beats per minute (bpm). Bradycardia is a condition where the resting heart rate drops below 60 bpm.
It is important to note that if the individual does not exhibit symptoms such as weakness, fatigue, dizziness, fainting, chest discomfort, palpitations, or respiratory distress, the condition of bradycardia might not be considered clinically significant. However, symptoms can indicate that the heart is not supplying enough oxygenated blood to the body, and severe cases may require medical interventions such as a pacemaker or supplemental oxygen, depending on the underlying cause.