loquat UK /ˈləʊkwɒt/US /ˈloʊkwɑt/ noun2 •Any member of the species Eriobotrya japonica of trees (Japanese medlar, Chinese plum, Japanese plum).Japan Mespilus, or Loquat. — 1811 •The fruit of this tree, which is as large as a small plum, but grows in clusters, and contains four or five large seeds. formsloquats