leaf-tailed gecko noun5 •A gecko with a tail in the shape of a leaf. •Any of 14 species of geckos in the genus Uroplatus found in Madagascar. •Any of 9 species of geckos in the genus Phyllurus in Australia. •Any of 7 species of geckos in the genus Saltuarius found in Australia. •Long-necked northern leaf-tailed gecko, Orraya occultus in Australia. formsleaf-tailed geckoes · leaf-tailed geckos