Pel·li·to·ry n. Bot. The common name of the several species of the genus Parietaria, low, harmless weeds of the Nettle family; -- also called wall pellitory, and lichwort.
Note: ☞ Parietaria officinalis is common on old walls in Europe; Parietaria pennsylvanica is found in the United States; and six or seven more species are found near the Mediterranean, or in the Orient.