Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
săbŭlōsus, a, um, adj. [sabulo], full of sand, sandy, gravelly: loca, Col. 2, 15, 4: arva, id. 2, 10, 23: terra, Plin. 13, 4, 7, § 28: solum, id. 35, 14, 49, § 170: aprica, id. 21, 29, 103, § 175: lutum, Vitr. 2, 3.