Struc"tur*al (?), a.
1.
Of or pertaining to structure; affecting structure; as, a structural error.
2. Biol.
Of or pertaining to organit structure; as, a structural element or cell; the structural peculiarities of an animal or a plant.
Structural formula. Chem. See Rational formula, under Formula.
<-- a symbolic representation of the structure of one molecule of a chemical compound, showing the attachments of the atoms to each other; it may or may not depict the stereochemical relations of the bonds. Distinguished from empirical formula. -->
© Webster 1913.