frontal lobe

noun

: the anterior division of each cerebral hemisphere

Examples of frontal lobe in a Sentence

Recent Examples on the Web
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Neuropathologist Bennet Omalu, speaking generally about the progression of neurological issues and not specifically about Ye, says that a frontal lobe injury can lead to bipolar disorder. Anna Peele, Vanity Fair, 27 Jan. 2026 In a full-page ad in the print edition of Monday's Wall Street Journal, Ye said the right frontal lobe of his brain was injured in the accident and he wasn't properly diagnosed until 2023. Alex Sundby, CBS News, 26 Jan. 2026 The dorsolateral prefrontal cortex, which plays a large role in mood regulation, focus, and cognition, is on the left side of the brain’s frontal lobe, and Exomind uses electromagnetic pulses to stimulate it during each treatment. Jenny Berg, Vogue, 20 Jan. 2026 Again, frontal lobe not developed. Brian Hiatt, Rolling Stone, 20 Jan. 2026 See All Example Sentences for frontal lobe

Word History

First Known Use

1827, in the meaning defined above

Time Traveler
The first known use of frontal lobe was in 1827

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Cite this Entry

“Frontal lobe.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/frontal%20lobe. Accessed 16 Feb. 2026.

Medical Definition

frontal lobe

noun
: the anterior division of each cerebral hemisphere having its lower part in the anterior fossa of the skull and bordered behind by the central sulcus

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