flicker-light response

flicker

— verb move back and forth very rapidly the candle flickered — verb (= flick) flash intermittently The lights flicked on and off — verb shine unsteadily The candle flickered — noun a momentary flash of light — noun North American woodpecker — noun (= waver) the act of moving back and forth

light Noun

— The energy that our eyes sense is light. And dance by the light of the moon.—Buffalo Gals, American folksong — If someone talks about a light, he or she means something bright that can be seen. The lights of the city shine all over the valley. When you leave the room, turn off the light.

light Adjective

— Something that is light in color is close to white. The morning sky was very light. — Something that is light in weight does not weigh much. I lifted her easily because she was so light. — Light may also mean that something is not serious. The light bruise on my leg didn't hurt much. I enjoy light comedy, where lots of funny things happen.

light Verb

— If someone lights a fire, the fire starts to burn. Let's light the wood in the fireplace. The match lit and I could see around me. — Something that lights a place makes it less dark. The moon lighted the forest path.

response Noun

— A response is some words or actions that happen as a reaction to something else. We sent a message to them two weeks ago, but there has been no response so far. The police response to these problems has been slow and weak. In psychology, a response is a behavior which occurs after a stimulus.