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olfactory bulb
noun
: a bulbous anterior projection of the olfactory lobe that is the place of termination of the olfactory nerves and is especially well developed in lower vertebrates (such as fishes)
Examples of olfactory bulb in a Sentence
Recent Examples on the Web
As Salinas expected, the olfactory bulb hosted some bacteria.
—Quanta Magazine, 2 Dec. 2024
For the study, the team sampled olfactory bulb tissues from 15 human cadavers.
—Sarah Kuta, Smithsonian Magazine, 18 Sep. 2024
The threads and microplastic pieces were discovered in the olfactory bulb, the part of the nose responsible for detecting odors that sits at the base of the brain.
—Sandee Lamotte, CNN, 16 Sep. 2024
Connecting the olfactory bulb and the nasal cavity is the olfactory nerve.
—Kaitlin Sullivan, NBC News, 16 Sep. 2024
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Word History
First Known Use
1851, in the meaning defined above
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Cite this Entry
“Olfactory bulb.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/olfactory%20bulb. Accessed 22 Dec. 2024.
Kids Definition
olfactory bulb
noun
: either of two small round structures projecting from the lower surface of the brain above the nasal cavity that transmit stimuli from the olfactory nerves to other areas of the brain for processing
Medical Definition
olfactory bulb
noun
: a bulbous anterior projection of the olfactory lobe that is the place of termination of the olfactory nerves
More from Merriam-Webster on olfactory bulb
Britannica.com: Encyclopedia article about olfactory bulb
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