Penfield

American  

[pen-feeld] / ˈpɛn fild /

noun

1. Wilder Graves 1891–1976, American-Canadian neurosurgeon.

---

Penfield Scientific  

/ pĕn′fēld′ /

1. American-born Canadian neurosurgeon noted for his experimental work on the exposed brains of conscious humans. His findings increased scientific understanding of the functions of the brain, brain diseases such as epilepsy, and the mechanisms involved in speech.

---

Example Sentences

See Examples For:

Penfield

Based on past spikes, Penfield says, $4 is “when everyone starts to get really upset.”

From The Wall Street Journal ● Mar. 15, 2026

The Penfield Reef Lighthouse off Fairfield, Conn., with its 19th century aesthetics and two-story keepers quarters, starts at $50,000.

From Los Angeles Times ● Jun. 1, 2023

Wilder Penfield, the trailblazing Canadian-American neurosurgeon, created the homunculus metaphor after mapping areas of the human brain by using direct electrical stimulation in awake patients in the 1930s.

From Scientific American ● Apr. 21, 2023

“I think that’s kind of the dilemma,” Penfield said.

From Washington Post ● Feb. 14, 2023

Putting down the Penfield manual, she jumped up, thinking, I don’t need to dial now; I already have it—if it is Rick.

From "Do Androids Dream of Electric Sheep?" by Philip K. Dick