WordWeb Online

1. Relating to or caused by structure, especially political or economic structure
   "structural unemployment in a technological society"
    
2. Affecting or involved in structure or construction
   "the structural details of a house such as beams and joists and rafters; not ornamental elements"; "structural damage"
    
3. Concerned with systematic structure in a particular field of study
    
4. Relating to, having or characterized by structure
   "structural engineer"; "structural errors"; "structural simplicity"
    
5. (geology) pertaining to geological structure
   "structural effects of folding and faulting of the earth's surface";
   - geomorphologic, geomorphological, morphologic, morphological, geomorphic
    
6. Relating to or concerned with the morphology of plants and animals
   "structural differences";
   - morphologic, morphological

See also: constructive, functional

Encyclopedia: Structural