As a noun terms
is .
As a verb polypiles is
(polypile).
terms
English
Noun
(head)
Statistics
*
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polypiles
English
Verb
(head)
(polypile) polypile
English
Verb
(polypil)
(video games, roguelikes) To stack (items) so as to polymorph them into different items in a single turn.
References
* Usenet newsgroups: [https://groups.google.com/forum/!search/%22polypile%22]