To shiver convulsively, as from fear or revulsion. See Synonyms at shake.
To vibrate; quiver: The airplane shuddered in the turbulence.
A convulsive shiver, as from fear or revulsion; a tremor.
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.