Tapeworms are flat worms that live in a person's digestive tract. They can grow to more than 82 feet (30 meters) and live as long as 30 years. Tapeworms are parasites. As you probably know from biology class, parasites are organisms that live in, or on, other organisms (called hosts).
Gluon definition, an unobserved massless particle with spin 1 that is believed to transmit the strong force between quarks, binding them together into baryons and mesons. See more. Dictionary.com
Gluten is basically the protein content of wheat (including spelt, semolina and durum) barley, rye and triticale (a hybrid). Known collectively as prolamins, these proteins have different names depending on the grain they are found in-gliadin in wheat, secalin in rye and hordein in barley.