inside surface of the plasma membrane to form a membrane-enclosed bubble, or vesicle, containing the ingested material. There are two main types of endocytosis that are distinguished by the size of the vesicle formed and the cellular machinery involved. Pinocytosis (cell drinking) describes the internalization of extracellular fluid and small macromolecules by means of small vesicles.
junket (plural junkets) (obsolete) A basket. A type of cream cheese, originally made in a rush basket; later, a food made of sweetened curds or rennet.
junk food. n. (Cookery) food that is low in nutritional value, often highly processed or ready-prepared, and eaten instead of or in addition to well-balanced meals. junkâ² food`. n. 1. food, as potato chips or candy, that is high in calories but of little nutritional value. 2. anything that is attractive or diverting but of negligible substance.