the GNU version of the Collaborative International Dictionary of English
adj. Worthy of being approved; meritorious.
The Century Dictionary and Cyclopedia
Capable of being approved; meriting approbation.
Word Usage
"The number of so-called approvable letters, which typically postpone FDA decisions pending more data, increased by 40% last year, according to a unit of Sagient Research Systems Inc., which tracks the regulatory paths of drugs."