vivisection
noun(viv-i-sec-tion)
the cutting of or operation on a living animal usually for physiological or pathological investigation; broadly : animal experimentation especially if considered to cause distress to the subject
vivisection
noun(viv-i-sec-tion)
minute or pitiless examination or criticism
vivisection
adjective(viv-i-sec-tion)
opposed to experimentation on living animals especially when considered to cause pain or distress to the subject : opposed to vivisection