| Subject | German | English |
| med. | Circulus arteriosus cerebri | circulus arteriosus cerebri (circulus arteriosus cerebri) |
| med. | Circulus arteriosus cerebri | circulus Willisii (circulus arteriosus, circulus of Willis) |
| med. | Circulus arteriosus cerebri | circulus arteriosus (circulus arteriosus cerebri) |
| med. | Circulus arteriosus nervi optici | Zinn's corona (circulus vasculosus nervi optici, circulus arteriosus Halleri, circulus Zinnii) |
| med. | Circulus arteriosus nervi optici | Zinn's circle (circulus vasculosus nervi optici, circulus arteriosus Halleri, circulus Zinnii) |
| med. | Circulus migrans | pityriasis linguae (lingua geographica, linguae exfoliatio areata, lingua dissecta) |
| med. | Circulus migrans | wandering rash (lingua geographica, linguae exfoliatio areata, lingua dissecta) |
| med. | Circulus migrans | annulus migrans (lingua geographica, linguae exfoliatio areata, lingua dissecta) |
| med. | Circulus migrans | glossitis areata exfoliativa (lingua geographica, linguae exfoliatio areata, lingua dissecta) |
| med. | Circulus migrans | erythema migrans (lingua geographica, linguae exfoliatio areata, lingua dissecta) |
| med. | Circulus migrans | geographic tongue (lingua geographica, linguae exfoliatio areata, lingua dissecta) |
| med. | Circulus vasculosus nervi optici | circulus vasculosus of optic nerve (circulus vasculosus nervi optici Halleri, circulus vasculosus nervi optici) |
| health. | Circulus venosus Hovii | circulus venosus Hovii |
| gen. | Circulus virtuosus | virtuous circle |
| gen. | "circulus virtuosus" | virtuous circle (circulus virtuosus) |
| fin. | Circulus virtuosus des Wachstums | virtuous growth circle |
| gen. | Circulus vitiosus | vicious circle |