monoscope
[ mon-uh-skohp ]
/ ˈmɒn əˌskoʊp /
noun
a cathode-ray tube that provides a signal of a fixed pattern, formerly used for testing television equipment at the end of a broadcast day.
Words nearby monoscope
monorchism,
monorhinous,
monorhyme,
monosaccharide,
monosaturated,
monoscope,
monosemy,
monosepalous,
monoski,
monosodium,
monosodium glutamate