ski·bob 
(skēbŏb′)
(skēbŏb′)n.
A vehicle for gliding downhill over snow, consisting of two skis one behind the other on a metal frame, steering handlebars connected to the shorter forward ski, and a low seat attached to the longer rear ski for the rider who wears small skis for balance. Also called snowbike.
skibob·ber n.
skibob′bing n.
- reducing agent
- reductant
- reductase
- reductio ad absurdum
- reduction
- reductional
- reductionism
- reductionist
- reductionistic
- reductive
- reductively
- reductivism
- reductivist
- redundancy
- redundant
- redundantly
- reduplicate
- reduplication
- reduplicative
- reduplicatively
- reduviid
- redux
- red valerian
- red velvet cake
- redware