noun, Informal. 1. . noun 1. a fragment of nucleic acid, such as a plasmid or a transposon, that can become incorporated into the DNA of a cell jumping gene (jŭm’pĭng) See transposon.
noun 1. food, as potato chips or candy, that is high in calories but of little nutritional value. 2. anything that is attractive and diverting but of negligible substance: the junk food offered by daytime television. noun 1. food that is low in nutritional value, often highly processed or ready-prepared, and eaten instead of or […]
- Junk heap
[juhng-kee] /ˈdʒʌŋ ki/ noun, Informal. 1. a drug addict, especially one addicted to heroin. 2. a person with an insatiable craving for something: a chocolate junkie. 3. an enthusiastic follower; fan; devotee: a baseball junkie. /ˈdʒʌŋkɪ/ noun (pl) junkies 1. an informal word for a drug addict, esp one who injects heroin into himself n. […]