Prolyl dipeptidase

What is Prolyl dipeptidase?

Prolyl dipeptidase definition and meaning on Dictionary terms:
a declaration that something will or will not be done, given, etc., by one: unkept political promises.
an express assurance on which expectation is to be based: promises that an enemy will not win.

something that has the effect of an express assurance; indication of what may be expected.
indication of future excellence or achievement: a writer who shows promise.
something that is promised.

verb (used with object), prom