The sending of a biochemical or other type of signal.
"The immune system relies on signaling to coordinate its response when it detects an infection."
In plain English: Signaling is when someone sends out clues to show what they are thinking, feeling, or planning without saying it directly.
"The flashing lights were an urgent signal for help from the trapped hikers."
Usage: In biology, signaling refers to how cells communicate through chemical messengers like hormones or neurotransmitters. In technology and business contexts, it describes the act of transmitting data packets or status updates across networks.
present participle of signal
"The flashing lights were signaling that the bridge was closed ahead."
In plain English: To signal means to show someone that you have something important to say without using words.
"The truck signaled left before merging into traffic."