norbornene
Chemistry
noun
An unsaturated bicyclic hydrocarbon, C7H10, structurally related to norbornane but with one CC bond; bicyclo[2.2.1]hept-2-ene.
Origin
1950s; earliest use found in Journal of the American Chemical Society.
- keepsake
- keep someone back
- keep someone dangling
- keep someone down
- keep someone guessing
- keep someone in
- keep someone in countenance
- keep someone in his (or her) place
- keep someone off
- keep someone posted
- keep someone sweet
- keep someone/thing off
- keep someone/thing on
- keep someone under
- keep someone up
- keep something back
- keep something dark
- keep something down
- keep something from
- keep something in
- keep something quiet (or keep quiet about something)
- keep something to oneself
- keep something under one's hat
- keep something up
- keep step