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.
The study, "SLAMF6 as a drug-targetable suppressor of T cell immunity against cancer," by André Veillette and colleagues, was published in Nature.
From Science Daily ● Jun. 9, 2026
The team's genome and transcriptome analysis also identified suppressor tRNA genes that match the reassigned codons, supporting the conclusion that the organism truly reads these former stop signals as amino acids.
From Science Daily ● May 7, 2026
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
Rhabdoid tumors are an aggressive cancer which is missing a key tumor suppressor protein.
From Science Daily ● Mar. 27, 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
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
