Entry 2 senses · 2 variants Webster, 1913 Parietary · Pa·ri·e·ta·ry · IPA /pəˈɹaɪəˌtɛɹi/ a. n. 01 a. See Parietal, 2. 1. See Parietal, 2. See: Parietal 02 n. Any one of several species of Parietaria. See 1st Pellitory. 1. Any one of several species of Parietaria. See 1st Pellitory.(Bot.) See: Pellitory