1. a scientist who studies biological rhythms and cycles in living organisms, such as circadian rhythms and seasonal patterns
Usage: specialized field; typically requires advanced degree in biology or related discipline

Examples

• The chronobiologist discovered that the plant's growth cycle was regulated by internal biological clocks.
• Dr. Martinez, a leading chronobiologist, has published research on how jet lag affects human sleep patterns.
• Chronobiologists study how animals adjust their behavior to seasonal changes in daylight.
• The chronobiologist's work revealed that many organisms have built-in timing mechanisms independent of external cues.
• Sleep researchers often collaborate with chronobiologists to understand the body's natural sleep-wake cycle.