almondine /ˈɑː(l)məndiːn/adjective 2noun 1forms 1 adjective2 •Garnished with almond slices.You've probably heard of trout almondine, but how about cheese-baked trout, Parmesan trout, or trout with lemon rice stuffing? — 2009 •(rare) Like or of the almond or almond tree. noun1 •A gemstone that is either a deep red garnet or a purple spinel. formsalmondines