Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
con-spissātus, a, um, Part. [id.], pressed together, thickened, condensed, dense (very rare): solum conspissatum et herbis colligatum, Col. 2, 18, 5: vinacea, id. 12, 45, 3: creta, Plin. 35, 6, 18, § 36.