Definition of "crash helmet" []

• A padded helmet, as one worn by bicyclists, motorcyclists, or aviators, to protect the head in case of accident. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "During the dark any motor-cyclist with heavy coat, crash helmet and goggles looks pretty much like any other motor-cyclist with heavy coat, crash helmet and goggles."
• "Back at Park Crescent I changed into some of the new things and left the jodhpur boots, padded jacket, crash helmet and goggles for return to Emily sometime, and I told Ivan (having checked with Margaret Morden) that so far the brewery's creditors were earning haloes and had agreed to meet on Monday."