Vivisection (noun)

1. The act or practice of performing experiments or surgical operations on living animals for the purpose of scientific research or teaching.
2. The practice of performing surgical operations or experiments on living animals for purposes of medical research.

Origin:

Late latin vivus "alive" + sectio "cutting".

Examples:

1. The use of animals in vivisection has been a controversial issue for many years.
2. Many scientists believe that vivisection is essential for the advancement of medical knowledge and treatments.
3. Vivisection is considered as cruel and inhumane by many animal rights activists.
4. Many countries have laws that regulate the use of animals in vivisection, which are intended to minimize the harm caused to animals.
5. The use of vivisection has been phased out in many countries and replaced by alternatives such as computer models and cell cultures.