- 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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Examples from the Web for penfield
"I thought this book might be of some service to you, Penfield," he explained.
I presume—a—Penfield, that I will be expected to make a brief address?
"I would like a full report of the battle, Penfield," he said.
Penfield, I trust that no one had the hardihood to assault the bearer of his country's flag?
A—Penfield, may I ask in which direction the tide of battle finally turned?