down·spin 
(dounspĭn′)
(dounspĭn′)n.
An extremely swift, acute downturn, as in market activity.
- external auditory canal
- external capsule
- external-combustion engine
- external ear
- externalism
- externalist
- externality
- externalization
- externalize
- externally
- external phase
- external respiration
- externe
- externship
- exteroceptive
- exteroceptor
- exterritorial
- exterritoriality
- exterritorially
- extinct
- extinction
- extinctive
- extinguish
- Wilhelm I
- Wilhelm II