Hans pretty much nails it. I'm fine adding PARTIAL-APPLY and REVERSE-PARTIAL-APPLY as synomyms, but not so wild about PAPPLY and RPAPPLY.
Great!
BTW, I have three candidates for synonyms:
1. PARTIAL-APPLY (wrong grammar?) 2. PARTIALLY-APPLY (too descriptive?) 3. APPLY-PARTIALLY (used in GNU Emacs, natural for me)
Which is better or natural for English speakers?