oppositesignal
nounUK /ˈɒpəzɪt ˈsɪɡnəl/
US /ˈɑːpəzɪt ˈsɪɡnəl/
A signal that means the opposite of another signal.
When the light turned red, the opposite signal turned green.
OTHER MEANINGS
2. A message that tells someone to do the reverse of what another message says.
The coach gave an opposite signal, so the team ran left instead of right.
3. In electronics, a pulse that is the reverse of a main pulse.
The circuit sent an opposite signal to cancel the noise.
4. A hint that points in the other direction.
Her frown was an opposite signal to his smile.