Word Study
    
                                	hierarch |
                                	hierarchal |
                                	hierarchic |
                                	hierarchical |
                                	hierarchical classification system |
                                hierarchical data structure
                                	| hierarchical menu 
                                	| hierarchical structure 
                                	| hierarchically 
                                	| hierarchism 
                                	| hierarchy 
                            
        hierarchical data structure
WORDNET DICTIONARY
Noun hierarchical data structure has 1 sense
- hierarchical data structure(n = noun.cognition) hierarchical structure - a structure of data having several levels arranged in a treelike structure; Array is a kind of data structure
 
            For further exploring for "hierarchical data structure" in Webster Dictionary Online
        

