forebrain

American  

[fawr-brayn, fohr-] / ˈfɔrˌbreɪn, ˈfoʊr- /

noun

Anatomy.

1. Also called prosencephalon. the anterior of the three primary divisions of the brain in the embryo of a vertebrate, or the part of the adult brain derived from this tissue including the diencephalon and telencephalon.

2. the telencephalon.

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forebrain British  

/ ˈfɔːˌbreɪn /

noun

1. the nontechnical name for prosencephalon

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forebrain Scientific  

/ fôr′brān′ /

1. The forwardmost part of the vertebrate brain. In humans, it consists of the thalamus, the hypothalamus, and the cerebrum.

2. Compare hindbrain midbrain

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Etymology

Origin of forebrain

First recorded in 1875–80; fore- + brain

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Example Sentences

See Examples For:

forebrain

Jokhai and Dundes found that the hindbrain does not emerge as a later branch of the developmental pathway that produces the forebrain and midbrain.

From Science Daily ● Sep. 21, 2026

ALS is often diagnosed between the ages of 40 and 70 and affects both the forebrain and the hindbrain.

From Science Daily ● Sep. 21, 2026

The experiments confirmed that touch for the head and body is mapped in different regions of the forebrain and showed for the first time that air pressure activates specific clusters of neurons in these regions.

From Science Daily ● May 29, 2024

This technical advance allowed them to identify previously unseen pathways connecting the brainstem, thalamus, hypothalamus, basal forebrain, and cerebral cortex.

From Science Daily ● May 1, 2024

The evagination to form the hypophysis, p, is seen against the floor of the forebrain, fb.

From Development of the Digestive Canal of the American Alligator by C. M. Reese

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