frontal lobe

American  

noun

Anatomy.

1. the anterior part of each cerebral hemisphere, in front of the central sulcus.

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frontal lobe British  

noun

1. anatomy the anterior portion of each cerebral hemisphere, situated in front of the central sulcus

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frontal lobe Scientific  

/ frŭn′tl /

1. The largest and forwardmost lobe of each cerebral hemisphere, responsible for the control of skilled motor activity, including speech. Mood and the ability to think are also controlled by the frontal lobe.

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Etymology

Origin of frontal lobe

First recorded in 1875–80

Example Sentences

See Examples For:

frontal lobe

What he did and how he did it is still in the frontal lobe of those who watched and those who wrote and broadcast about him.

From Los Angeles Times ● Apr. 19, 2026

Barbara Sahakian, a neuropsychologist at the University of Cambridge who specialises in ADHD, said the condition affects the brain's frontal lobe, which play a key role in organisation and focus.

From BBC ● Mar. 25, 2026

However, the widely repeated claim that brain development, especially in the frontal lobe, stops at 25 is not accurate.

From Science Daily ● Feb. 19, 2026

In typical cases, the exposure damages the brain’s frontal lobe, which slows cognition, impairs impulse control, restricts dopamine production and affects mood.

From The Wall Street Journal ● Dec. 22, 2025

In 1862, Paul Broca found an area on the lower left frontal lobe that controlled the ability to speak.

From "Phineas Gage" by John Fleischman