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.