Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
multĭ-nōdus, a, um, and multĭ-nōdis, e, adj. [multus-nodus], having many knots (post-class.): multinodis voluminibus serpens coluber, App. M. 5, p. 166, 19: flagellis multinodi genere, Prud. Cath. 7, 139: anfractus, Mart. Cap. 4, § 423 (but in App. M. 10, p. 253, the correct read. is multimodas).