Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† mŏnŏcŭlus, i, m. [vox hybr. from μόνος and oculus], one-eyed, a one-eyed man (post-class.), Firm. Math. 8, 19; 8, 22; cf. Gloss. Lab. monoculus = μονόφθαλμος.