Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
dīscriptio, ōnis, f. [discribo], a division, distribution, apportionment: civitatis, Cic. Sest. 65, 137: populi, id. Planc. 18, 45: privatarum possessionum, id. Off. 1, 7, 21; id. Tusc. 4, 1, 1; 5, 24, 68; id. Rep. 1, 46, 70; id. N. D. 1, 33, 92 al. (In these passages, formerly descriptio, q. v.)