WordNet
head register
n. the higher ranges of the voice in speaking or singing; the vibrations of sung notes are felt in the head [syn: head voice, head tone]
Usage examples of "head register".
McCoy ran a dampened cloth over Spock's forehead, taking note of the Vulcan's clenched fist, and shook his head in frustration as he watched the monitor above his patient's head register the inner battle Spock was waging.