Which term describes a long-term condition that progresses gradually?

The term that describes a long-term condition that progresses gradually is "chronic." Chronic conditions are typically characterized by their enduring nature, often lasting for months or even years. They can worsen over time, but they may also have periods of stability where symptoms are manageable. Common examples of chronic conditions include asthma, diabetes, and arthritis, which require ongoing management and care to maintain a person's health and quality of life.

In contrast, acute conditions arise suddenly and typically present with severe symptoms that require immediate attention. Terminal refers to a condition that is expected to lead to death, and intermittent describes conditions that have alternating periods of symptoms and relief. These distinctions are crucial in medical terminology as they help healthcare providers determine appropriate care and treatment strategies.