green·head 
(grēnhĕd′)
(grēnhĕd′)n.
1. A male mallard duck.
2. Any of several horseflies having green eyes, found especially in coastal regions.
- erythema infectiosum
- erythema migrans
- erythematic
- erythematous
- erythemic
- erythorbic acid
- erythr-
- erythrism
- erythrismal
- erythrite
- erythro-
- erythroblast
- erythroblastic
- erythroblastosis
- erythroblastosis fetalis
- erythrocyte
- erythrocytic
- erythrocytometer
- erythromycin
- erythropoiesis
- erythropoietic
- erythropoietin
- Erzgebirge
- -es
- -es