in·tron 
(ĭntrŏn)
(ĭntrŏn)n.
A segment of a gene situated between exons that is removed before translation of messenger RNA and does not function in coding for protein synthesis.
[intr(agenic), occurring within a gene (INTRA- + GENIC) + -ON1.]
- bring in
- bring off
- bring on
- bring (or call)to mind
- bring (or call) to mind
- bring out
- bring round
- bring to
- bring to bear
- bring to book
- bring to knees
- bring to life
- bring to light
- bring to mind
- bring to (one's) knees
- bring to one's knees
- bring to pass
- bring to task
- bring to terms
- bring up
- bring up the rear
- brininess
- brink
- Brinkley
- brinkmanship