2. (Biol.)
Defn: 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. empirical formula.
STRUCTURAL SHAPE
Struc"tur*al shape. (Engin. & Arch.)
Defn: The shape of a member especially adapted to structural purposes, esp. in giving the greatest strength with the least material. Hence, Colloq.,
Defn: any steel or iron member of such shape, as channel irons, I beams, T beams, etc., or, sometimes, a column, girder, etc., built up with such members.
STRUCTURAL STEEL
Structural steel.
(a) Rolled steel in structural shapes.
(b) A kind of strong mild steel, suitable for structural shapes.
STRUCTURE Struc"ture, n. Etym: [L. structura, from struere, structum, to arrange, build, construct; perhaps akin to E. strew: cf. F. structure. Cf. Construe, Destroy, Instrument, Obstruct.]
1. The act of building; the practice of erecting buildings; construction. [R.] His son builds on, and never is content Till the last farthing is in structure spent. J. Dryden, Jr.
2. Manner of building; form; make; construction. Want of insight into the structure and constitution of the terraqueous globe. Woodward.
3. Arrangement of parts, of organs, or of constituent particles, in a substance or body; as, the structure of a rock or a mineral; the structure of a sentence. It [basalt] has often a prismatic structure. Dana.