l]
| 1. | of or pertaining to structure; pertaining or essential to a structure. |
| 2. | Biology. pertaining to organic structure; morphological. |
| 3. | Geology. of or pertaining to geological structure, as of rock or strata. |
| 4. | Chemistry. pertaining to or showing the arrangement or mode of attachment of the atoms that constitute a molecule of a substance. Compare structural formula. |
| 5. | resulting from or pertaining to political or economic structure. |
| 6. | of, pertaining to, or based on the assumption that the elements of a field of study are naturally arranged in a systematic structure: structural grammar. |
| 7. | Building Trades.
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