What is torpid definition?

Torpid is an adjective that describes a state of inactivity, low metabolism, or drowsiness often experienced by some animals during winter or dry or hot seasons. In this state, animals can conserve energy and survive long periods with minimal food intake. During torpor, breathing, heart rate, and other physiological functions may slow down significantly. Some animals, such as bears, hibernate in a state of torpor, while others, such as hummingbirds, experience daily torpor to conserve energy at night. Some medical conditions can also cause torpor or lethargy, such as depression, trauma, or drug use.