structural

The definition of structural is something arranged in a specific way, or something that is strong enough for construction use.

(adjective)

See structural in Webster's New World College Dictionary

adjective

of, having, associated with, or characterized by structure: structural complexity
used in or suitable for construction, as of buildings: structural steel
of, or in accordance with, structural linguistics
Geol. of or related to the structure of the earth's crust and to changes produced in it by movement; geotectonic

Related Forms:

See structural in American Heritage Dictionary 4

adjective

a. Of, relating to, having, or characterized by structure: structural simplicity.
b. Affecting structure: structural damage.
Used in or necessary to building: structural beams.
Concerned with or resulting from political or especially economic structure.
Geology Of or relating to the structure of rocks and other aspects of the earth's crust.
Biology Of or relating to organic structure; morphological.
Relating to or concerned with systematic structure in a particular field of study, such as linguistics or the behavioral sciences.