Answer | Crossword Clue |
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gaslights | A type of lamp in which an incandescent mantle is heated by a jet of burning gas |
gaslight | A type of lamp in which an incandescent mantle is heated by a jet of burning gas |
pyrophotometer | a type of pyrometer in which the temperature of an incandescent body is determined by photometric measurement of the light it emits |
pyrophotometers | PYROPHOTOMETER, a type of pyrometer in which the temperature of an incandescent body is determined by photometric measurement of the light it emits |