Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
condenso, āre (access form *con-densĕo, ēre: quia se condenseat aër, Lucr. 1, 392; cf. denseo = denso), v. a. [condensus], to make very dense, to condense, to press close together (rare; not in Cic.): oves se congregant ac condensant in locum unum, Varr. R. R. 2, 3, 9: aciem, Auct. B. Afr. 13; Col. 2, 18, 6: condensari, id. 7, 8, 4: humus condensata subsidit, id. 4, 1, 7; 4, 17, 8.