genus Paronychia ge·nus·pa·ronychia uncommon noun 1. low-growing annual or perennial herbs or woody plants; whitlowworts SynonymsParonychiagenus Paronychia Related words Broader terms caryophylloid dicot genus Parts Caryophyllaceae Part of whitlowwort WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.