The question asks for a one-word substitute for the given phrase: "The practice or art of choosing, cooking and eating good food."
- The key components of the phrase are "choosing," "cooking," and "eating good food." These activities collectively concern the appreciation and preparation of high-quality food.
- Let's analyze each option:
- Cuisine: Refers to the style or method of cooking, especially as characteristic of a particular country, region, or establishment. It focuses more on the cooking style or method rather than the broad practice of selecting, cooking, and enjoying good food.
- Catering: Refers to the business of providing food and drink, typically at social events or in a specific setting. It is related to providing food services and not specifically to the art of appreciating and preparing food.
- Gastronomy: The study or art of choosing, cooking, and eating good food. This option directly matches the complete idea of the phrase by focusing on the comprehensive practice from selecting and cooking to enjoying food.
- Nutriment: Simply refers to food or nourishment required for growth and health. It covers only the nutritional aspect of food, not the art or practice described.
- Buffet: A meal consisting of several dishes from which guests serve themselves. It pertains to a type of meal arrangement rather than the art of good food.
- Given the definitions:
\[\text{Cuisine, Nutriment, and Buffet}\]- : Do not fully encapsulate the "art of choosing, cooking, and eating" food.
- \(\text{Catering}\): More about the service aspect rather than appreciation and selection.
- The correct answer is, therefore, Gastronomy, as it encompasses the entire process described in the phrase.
Thus, the suitable one-word substitute is Gastronomy.