Carriers meaning : A person or object that carries someone or something else. A carrier pigeon. A person or company in the business of shipping freight. A signal such as radio, sound, or light that is modulated to transmit information. A mobile network operator; wireless carrier. A certified airline. That which drives or carries. A catalyst or other intermediary in a chemical reaction. A person or other organism that has a genetic trait, mutation or infection liable to cause a disease, but displays no symptoms. Charge carrier A liquid or gas used as a medium for another substance.