startle

(redirected from startlingness)
Also found in: Dictionary, Thesaurus, Idioms.

startle

(stăr′tĕl) [ME. sterten, stand up stiffly; move quickly]
A response to a sudden stimulus marked by jerking body movements and some or all of the following: defensive posture, tremors, sweating, widened pupils, and a temporary increase in pulse and respiratory rates.
Medical Dictionary, © 2009 Farlex and Partners