Definitions for "Thermoregulate"
Process in which the animal will move to warmer or cooler places to regulate its body temperature and metabolism
The act of regulating body temperature. Because iguanas are ectothermic (see above), they must regulate their body temperature by their behavior - basking to warm up, and moving to cooler areas to cool down.
To maintain correct body temperature by moving to warmer and colder places in the environment, specifically in the case of reptilians and other cold-blooded animals.