any of various types of oval or rounded structures occurring at the ends of nerve fibers, ranging from slight enlargements to complex corpuscles that act as sensory receptors for pain, touch, cold, etc.
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Examples from the Web for end bulb
Historical Examples of end bulb
The nerves of sensibility have a peculiarly sensitive arrangement spread under the skin, constituting an end-bulb or touch organ.The Relations of Science and Religion
One of the oval or rounded bodies in which a sensory nerve fiber terminates.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.