Adjective
1. relating to or caused by structure, especially political or economic structure;
"structural unemployment in a technological society"2. relating to or having or characterized by structure;
"structural engineer""structural errors""structural simplicity"3. 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"4. concerned with systematic structure in a particular field of study
5. pertaining to geological structure;
"geomorphological features of the Black Hills""morphological features of granite""structural effects of folding and faulting of the earth's surface"6. relating to or concerned with the morphology of plants and animals;
"morphological differences"