Noun
Any of three species of East Asian trees and their fruit:
Prunus mume, the Japanese apricot.
Prunus salicina, the Japanese plum.
Eriobotrya japonica, the loquat.
Source: en.wiktionary.orgOther than rice vinegar and ketchup, I also use Chinese plum sauce to add some extra zing, plus a few dashes of Lea & Perrins Worcestershire Sauce and oyster sauce to complete the perfect balance of flavor. Source: Internet