You won't believe these 10 facts about people. An electrical circuit is a device that uses electricity to perform a task, such as run a vacuum or power a lamp. The circuit is a closed loop formed by a power source, wires, a fuse, a load, and a switch.
anxiety reaction a reaction characterized by abnormal apprehension or uneasiness; see also anxiety disorders. separation anxiety apprehension due to removal of significant persons or familiar surroundings, common in infants 12 to 24 months old; see also separation anxiety disorder.
A man expressing anxiety while taking a test. noun. Anxiety is defined as a feeling of being nervous or worried, often as a result of fear of a possible future event. An example of anxiety is the feeling you get before a test for which you have not studied. The definition of anxiety is an eager, strong desire.