na·pi·form 
(nāpə-fôrm′)
(nāpə-fôrm′)adj.
Round at the top and tapering below; turnip-shaped: napiform roots.
[Latin nāpus, turnip + -FORM.]
- cogitation
- cogitative
- cogitatively
- cogitator
- cognac
- Cognac
- cognate
- cognation
- cognition
- cognitional
- cognitive
- cognitive-behavioral therapy
- cognitive dissonance
- cognitively
- cognitive neuroscience
- cognitive science
- cognitive therapy
- cognizable
- cognizably
- cognizance
- cognizant
- cognomen
- cognominal
- cognoscente
- cogongrass