suppressor
Britishnoun
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a person or thing that suppresses
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a device fitted to an electrical appliance to suppress unwanted electrical interference to audiovisual signals
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A mutant gene that suppresses the phenotypic expression of another usually mutant gene.
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A device, such as a resistor or grid, that is used in an electrical or electronic system to reduce unwanted currents.
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◆ A suppressor grid in a vacuum tube such as a pentode is designed to prevent the secondary emission of electrons from the plate. When electrons emitted by the tube's cathode strike the plate, their energies can be high enough to cause secondary emission of low-energy electrons from the plate, and these electrons can drift away into other positively charged electrodes in the tube (like the screen or the control grid), drawing current from the plate. A negatively charged suppressor grid near the plate repels these low-energy electrons and pushes them back toward the plate so that no current is lost, increasing the efficiency of the tube.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
When the gene p53, a well known tumor suppressor, is mutated, that rate nearly doubles.
From Science Daily ● Mar. 10, 2026
They wanted to take advantage of these suppressor cells' power to temper immune responses, such as inflammation.
From Science Daily ● Dec. 5, 2024
The team adapted the suppressor cells' anti-inflammatory abilities to work in CD4 immune cells.
From Science Daily ● Dec. 5, 2024
Additionally, it reveals the intricate connection between NMD and the most famous tumor suppressor gene, p53, suggesting possible new connections between NMD and cancer.
From Science Daily ● May 1, 2024
Research into HPV eventually uncovered how Henrietta’s cancer started: HPV inserted its DNA into the long arm of her eleventh chromosome and essentially turned off her p 5 3 tumor suppressor gene.
From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot
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