A word or phrase with a specific, defined meaning within a particular field, in this glossary the specialised vocabulary of food science, food safety, food quality, and food processing. Terms are the working units of technical communication: each one compresses a precise concept, from a microorganism to a processing method to a regulatory limit, into a standard label that professionals everywhere understand identically. Building and maintaining agreed terminology matters because ambiguous language causes errors in manufacturing, misinterpretation of regulations, and confusion in trade. Glossaries, standards, and codes such as the Codex Alimentarius exist to fix these meanings. Mastering the terms of the discipline is the first step toward mastering the discipline itself.