o·don·to·phore 
(ō-dŏntə-fôr′)
(ō-dŏntə-fôr′)n.
A structure in most mollusks over which the radula is drawn back and forth during feeding.
o′don·topho·ral (ō′dŏn-tŏfər-əl) adj.
- unpretending
- unpretentious
- unpretentiously
- unpretentiousness
- unpriced
- unprincipled
- unprintable
- unproductive
- unproductively
- unproductiveness
- unprofessional
- unprofessionalism
- unprofessionally
- unprofitability
- unprofitable
- unprofitableness
- unprofitably
- unpromising
- unpromisingly
- unpronounceable
- unpropitious
- unpropitiously
- unprotected
- unprovided
- unprovidedly