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antigens

Cultural  
  1. Substances that are foreign to the body and cause the production of antibodies. Toxins, invading bacteria and viruses, and the cells of transplanted organs can all function as antigens.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"It's becoming increasingly clear that many pathogens are able to quickly mutate. Like the proverbial leopard that changes its spots, a virus can change the antigens on its surface," Pulendran said.

From Science Daily • Feb. 23, 2026

Illumination with red light is designed to rupture the cell, releasing cancer antigens that may activate the body’s immune system to fight the cancer.

From The Wall Street Journal • Jan. 8, 2026

Their long-term goal is to test these mpox and smallpox vaccine antigens and antibody treatments in humans.

From Science Daily • Dec. 12, 2025

However, creating antigens for each cancer type can require extensive genome sequencing or bioinformatics analysis.

From Science Daily • Oct. 13, 2025

Malaria and sleeping sickness are even more slippery customers in their ability rapidly to change their antigens.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond