has part has part has_part characteristic of part of has modifier abnormal rhombomere morphology abnormal rhombomeres MP:0000933 rhombomere dysplasia any structural anomaly of any of the transiently divided segments of the developing neural tube of vertebrate embryos found within the hindbrain region in the area that will eventually become the rhombencephalon; the rhombomeres appear as a series of slightly constricted swellings in the neural tube, caudal to the cephalic flexure MPheno.ontology abnormal neuromere morphology abnormal hindbrain development morphology abnormal rhombomere