Alli is one of the few over-the-counter diet aids that might actually work, according to the Mayo Clinic. The pill is a lower-dosage version of Xenical, consisting of 60 mg of the fat-blocking drug orlistat.
Adjective[edit] tentative â(comparative more tentative, superlative most tentative) Of or pertaining to a trial or trials; essaying; experimental.
preliminary - something that serves as a preceding event or introduces what follows; training is a necessary preliminary to employment; drinks were the overture to dinner. prelude, overture. inception, origination, origin - an event that is a beginning; a first part or stage of subsequent events.