has quality grooved immaterial anatomical entity surface groove https://github.com/obophenotype/uberon/issues/2667 A furrow or an incomplete tube. surface groove AEO:0000161 Surface groove is modelled as immaterial - see https://github.com/obophenotype/uberon/issues/2667 for discussion EHDAA2_RETIRED:0003161 groove UBERON:0006846