VariousWords beta
Definitions:
Noun
                                                
                        
                            mongolism
                        
                                                
                        
                            mongolianism
                        
                                                
                        
                            Down's syndrome
                        
                                                
                        
                            Down syndrome
                        
                                                
                        
                            trisomy 21
                        
                                                
                                                    
                
                    
                    Definition: a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation
Definition: The presence of three copies of the 21st chromosome in the karyotype.