for polymers, the state wherein a periodic and repeating atomic arrangement is achieved by molecular chain alignment.
                                                            
                                                     
                        
                                                
                        
                        
                            Crystalline materials are characterised by a highly ordered molecular structure, high purity, and well defined properties such as solubility and melting point. A number of Cerestar products are sold in crystalline form such as dextrose, sorbitol, maltitol etc.
                                                            
                                                     
                        
                                                
                        
                        
                            a molecular structure resulting from the formation of solid crystals with a geometric pattern.
                                                            
                                                     
                        
                                                
                        
                        
                            A state of molecular structure in some polymers denoting uniformity and compactness of the molecular chains.
                                                            
                                                     
                        
                                                
                        
                        
                            Crystallinity refers to the crystal structure of the starch of a plant.
                                                            
                                                     
                        
                                                
                        
                        
                            Crystallinity is the degree of structural order in a solid, often represented by a fraction or percentage as a measure of how likely atoms or molecules are to be arranged in a regular pattern, namely into a crystal. This property can often be measured directly using diffraction techniques, such as x-ray diffraction: greater crystallinity yields a sharper diffracted beam.