VTOL 
(vētôl′)
(vētôl′)n.
1. The capability of taking off and landing vertically, without use of a runway.
2. An aircraft having such capability.
[v(ertical) t(ake)o(ff and) l(anding).]
- respell
- Respighi
- respirability
- respirable
- respiration
- respirational
- respirator
- respiratory
- respiratory acidosis
- respiratory alkalosis
- respiratory distress syndrome
- respiratory enzyme
- respiratory failure
- respiratory pigment
- respiratory quotient
- respiratory syncytial virus
- respiratory system
- respiratory therapist
- respiratory therapy
- respire
- respirometer
- respirometric
- respirometry
- respite
- resplendence