anti-, ant-

1. Opposition to the use of living animals for experimentation.
2. Protection of animals from cruelty through requirements of humane treatment.

Laws protecting animal rights proscribe certain descriptions of brutal and merciless treatment of animals in medical and scientific research and in the handling of and the slaughter of animals for human consumption.

Someone who opposes vivisection or any form of live animal experimentation.

A reference to a word, or words, having opposite meanings to another word, or words.

1. The semantic relation that holds between two words that can (in a given context) express opposite meanings.
2. The relationship between lexical items that are binary opposites in meaning (example: alive and dead), gradable opposites in meaning (example: young and old), or converse opposites (example: buy and sell).

Rosacea is a painful acne-like skin disorder, characterized by dilated blood vessels and persistent redness of the face.

There is evidence that cathelicidin peptides (which are chemotactic, angiogenic, and bactericidal, and are important for innate immune responses in the skin) are involved in the pathogenesis of rosacea.