-dēəm noun
Etymology: New Latin, from Greek erōdios heron; from the long-beaked fruit — more at ardea
1. capitalized : a large genus of herbs (family Geraniaceae) having pinnate or pinnatifid leaves, small flowers, and long bearded twisted tails on the carpels — see alfilaria
2. -s : any plant of the genus Erodium — called also heron's-bill, storksbill