su·per·gene 
(spər-jēn′)
(spər-jēn′)n.
A group of closely linked genes occupying a large chromosomal segment and frequently functioning as a genetic unit.
- second-rate
- second-rateness
- second-rater
- second sight
- second-story man
- second-strike
- second string
- second-string
- second-stringer
- second thought
- second wind
- Second World
- Second-World
- Second World War
- secrecy
- secret
- secreta
- secretagogue
- secretarial
- secretariat
- secretary
- secretary bird
- secretary-general
- secretary of state
- secretase