Premise: A meat analogue, also called a meat alternative, meat substitute, mock meat, faux meat, imitation meat, or (where applicable) vegetarian meat or vegan meat, approximates certain aesthetic qualities (primarily texture, flavor and appearance) and/or chemical characteristics of specific types of meat. Many analogues are soy-based (see: tofu, tempeh) or gluten-based.
Hypothesis: A meat alternative can be soy-based or meat-based.