Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
sculpo, psi, ptum, 3, v. a. [cf. γλύφω, to hollow out, grave; also scalpo, γλάφω], to carve, cut, grave, chisel in stone, brass, wood, etc.; to form, fashion, or produce by carving, graving, etc. (very rare but class.; in the MSS. very freq. interchanged with scalpere).
sculptūra, ae, f. [sculpo], a cutting out, carving in relief, sculpture: anulus, cujus gemmae sculptura erat Proserpinae raptus, Suet. Ner. 46: anulus ejusdem sculpturae, Just. 15, 4, 5; Quint. 2, 21, 9.