host cell
noun
plural host cells
: a living cell invaded by or capable of being invaded by an infectious agent (such as a bacterium or a virus)
This drug integrates with the virus in a way that prevents it from attaching to host cells, and prevents viral replication of cells already infected.—
Donald M. Kaminsky
Donald M. KaminskyOnce the protozoan invades the host cell, it apparently is shielded from the action of any drug.—Burton J. Bogitsh et al.
Burton J. Bogitsh et al.Examples of host cell in a Sentence
Recent Examples on the Web
The Caltech lab chose a part of Covid’s famous spike protein called a receptor binding domain (RBD), which helps the virus enter and infect a host cell.
—Maggie Chen, WIRED, 26 July 2022
In a new study, a global team of researchers hijacked the system Toxoplasma uses to secrete proteins into its host cell.
—Bill Sullivan, Discover Magazine, 12 Aug. 2024
And if a virus does manage to invade a host cell, it will be targeted for destruction by memory T cells.
—WIRED, 19 Nov. 2023
If the signal comes from inside the cell — if the reason for death is damage to the genome, for instance — then the process starts with the mitochondria turning against their host cell.
—Quanta Magazine, 6 Mar. 2024
Yet in some cases, the virus takes off by rapid replication in host cells.
—Brian Murphy, Washington Post, 15 Feb. 2024
But if bacteria attack host cells indirectly (such as by secreting proteins that go on to harm host cells), then a larger dose of bacteria is necessary to infect the host, since the host-modifying secretions could be diluted by time and space.
—WIRED, 19 Nov. 2023
The coffee prevented entry of the SARS-CoV-2 infection by keeping the virus from entering host cells.
—Melissa Rudy, Fox News, 21 Nov. 2023
These will interfere with its ability to attach to a host cell, or single out the microbe for ingestion by cells called neutrophils.
—WIRED, 19 Nov. 2023
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Maggie Chen, WIRED, 26 July 2022
In a new study, a global team of researchers hijacked the system Toxoplasma uses to secrete proteins into its host cell.
—Bill Sullivan, Discover Magazine, 12 Aug. 2024
And if a virus does manage to invade a host cell, it will be targeted for destruction by memory T cells.
—WIRED, 19 Nov. 2023
If the signal comes from inside the cell — if the reason for death is damage to the genome, for instance — then the process starts with the mitochondria turning against their host cell.
—Quanta Magazine, 6 Mar. 2024
Yet in some cases, the virus takes off by rapid replication in host cells.
—Brian Murphy, Washington Post, 15 Feb. 2024
But if bacteria attack host cells indirectly (such as by secreting proteins that go on to harm host cells), then a larger dose of bacteria is necessary to infect the host, since the host-modifying secretions could be diluted by time and space.
—WIRED, 19 Nov. 2023
The coffee prevented entry of the SARS-CoV-2 infection by keeping the virus from entering host cells.
—Melissa Rudy, Fox News, 21 Nov. 2023
These will interfere with its ability to attach to a host cell, or single out the microbe for ingestion by cells called neutrophils.
—WIRED, 19 Nov. 2023
Dictionary Entries Near host cell
Cite this Entry
“Host cell.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/host%20cell. Accessed 21 Dec. 2024.
Copy CitationMedical Definition
host cell
noun
: a living cell invaded by or capable of being invaded by an infectious agent (as a bacterium or a virus)
HIV makes Tat only after the virus gets inside a host cell.—John Travis
John TravisLove words? Need even more definitions?
Merriam-Webster unabridged
Share