I'm looking for a word that represents the piece after the promotion. In a chemical reaction there are the reactants and the products. Is there an equivalent word for product in promotion?
(In case I haven't make it clear: after a8=Q, is there a word for that queen?)
Edit: I was looking for a generic term (preferably one word) for the resulting piece, not a specific type like queen or knight.
Summarizing some suggestions
The following suggestions are from comments and answers (thank you all) at the time I'm editing this: "promoted piece", "promotee", and "new piece".