Dictionary.net

• A method of determining the presence or absence of life in an animal organism with a current of electricity, by noting the presence or absence of muscular contraction.

2010 - New Age Dictionary Database
By Oddity Software

• A method of determining the presence or absence of life in an animal organism with a current of electricity, by noting the presence or absence of muscular contraction.

1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.