| Subject | English | German |
| busin. | a wide circle of | ein weiter Kreis von |
| gen. | arc of a circle | Kreisbogen |
| phys. | arc of the circle | Kreisbogen |
| opt. | arc of the great circle | Bogen des Großkreises |
| opt. | area of a circle | Kreisinhalt |
| opt. | area of a circle | Kreisfläche |
| tech. | area of a circle | Kreisflaeche |
| tech. | center of circle | Kreismittelpunk |
| tech. | center of circumscribed circle | Umkreismittelpunkt |
| tech. | center of inscribed circle | Innenkreismittelpunkt |
| equest.sp. | change of circles | Wechsel aus den Zirkeln |
| gen. | circle of acquaintances | Bekanntenkreis |
| astr. | circle of altitude | Höhenkreis |
| tech. | circle of altitude | Hoehenzirkel |
| gymn. | circle of body backward | Felgüberschwung rücklings (to hang or support or dismount) |
| opt. | circle of confusion | Bildscheibchen (expressed as the diameter of the image formed by a lens of a point of light; the diameter of this tiny disk of light is an indication of the degree of correction of a lens) |
| opt. | circle of confusion | Zerstreuungsscheibe (s. a. Zerstreuungskreis) |
| opt. | circle of confusion | Zerstreuungskreis (expressed as the diameter of the image formed by a lens of a point of light; the diameter of this tiny disk of light is an indication of the degree of correction of a lens) |
| phys. | circle of least confusion | Streuungskreis |
| phys. | circle of least confusion | Streukreis |
| phys. | circle of least confusion | Streuscheibchen |
| phys. | circle of least confusion | Kreis der kleinsten Verzerrung |
| opt. | circle of confusion | Unschärfenkreis (expressed as the diameter of the image formed by a lens of a point of light; the diameter of this tiny disk of light is an indication of the degree of correction of a lens) |
| opt. | circle of confusion | Streuscheibchen (expressed as the diameter of the image formed by a lens of a point of light; the diameter of this tiny disk of light is an indication of the degree of correction of a lens) |
| opt. | circle of confusion | Streukreis |
| opt. | circle of confusion | Fehlerscheibchen (expressed as the diameter of the image formed by a lens of a point of light; the diameter of this tiny disk of light is an indication of the degree of correction of a lens) |
| opt. | circle of confusion | Diffusionskreis (expressed as the diameter of the image formed by a lens of a point of light; the diameter of this tiny disk of light is an indication of the degree of correction of a lens) |
| tech. | circle of confusion | Fehlerscheibchen |
| gen. | circle of confusion CoC | Zerstreuungskreis |
| phys. | circle of convergence | Konvergenzkreis |
| phys. | circle of curvature | Schmiegungskreis |
| phys. | circle of curvature | Krümmungskreis |
| tech. | circle of diffusion | Unschaerfering |
| tech. | circle of diffusion | Zerstreuungskreis |
| tech. | circle of diffusion | Diffusionskreis |
| meas.inst. | circle of equal altitude | Positionskreis |
| tech. | circle of equal probability | Gleichwahrscheinlichkeitskreis (statistisch) |
| tech. | circle of equal probability | CEP-Wert |
| gen. | circle of experts | Fachkreis |
| construct. | circle of failure | Scherkreis |
| construct. | circle of failure | Bruchkreis |
| gen. | circle of friends | Freundeskreis |
| gen. | circle of friends and acquaintances | Freundes- und Bekanntenkreis |
| life.sc. | circle of geodetic equidistance | geodätischer Kreis |
| gen. | circle of interested people | Kreis Interessierter |
| tech. | circle of latitude | Ost-West-Linie |
| tech. | circle of least aberration | Kreis der geringsten Aberration |
| opt. | circle of least confusion | Diffusionskreis (when a pencil of light from a point source does not, after passing through a lens, converge to an absolute point before diverging again, the diameter of the pencil at its narrowest is termed circle of least confusion) |
| opt. | circle of least confusion | Fehlerscheibchen (when a pencil of light from a point source does not, after passing through a lens, converge to an absolute point before diverging again, the diameter of the pencil at its narrowest is termed circle of least confusion) |
| opt. | circle of least confusion | Streuscheibchen (when a pencil of light from a point source does not, after passing through a lens, converge to an absolute point before diverging again, the diameter of the pencil at its narrowest is termed circle of least confusion) |
| opt. | circle of least confusion | Zerstreuungskreis (when a pencil of light from a point source does not, after passing through a lens, converge to an absolute point before diverging again, the diameter of the pencil at its narrowest is termed circle of least confusion) |
| opt. | circle of least confusion | Unschärfenkreis (when a pencil of light from a point source does not, after passing through a lens, converge to an absolute point before diverging again, the diameter of the pencil at its narrowest is termed circle of least confusion) |
| opt. | circle of least confusion | Streukreis (s. a. Streuscheibchen) |
| opt. | circle of least confusion | Zerstreuungsscheibe |
| opt. | circle of least confusion | Bildscheibchen (when a pencil of light from a point source does not, after passing through a lens, converge to an absolute point before diverging again, the diameter of the pencil at its narrowest is termed circle of least confusion) |
| tech. | circle of light | Lichtkreis |
| tech. | circle of longitude | Laengenkreis |
| meas.inst. | circle of position | Positionskreis |
| tech. | circle of position | Hoehengleiche |
| meas.inst. | circle of position | Höhengleiche |
| tech. | circle of position | Kreisstandlinie |
| tech. | circle of probable error | Gleichwahrscheinlichkeitskreis (statischstatistisch) |
| tech. | circle of probable error | Streukreisradius |
| law, ADR | circle of readers | Leserkreis |
| weap. | circle of rupture | Spreng-Wirkungskreis |
| weap. | circle of rupture | Wirkungskreis |
| construct. | circle of sliding | Scherkreis |
| construct. | circle of sliding | Bruchkreis |
| geomech. | circle of stress limit | Grenzspannungskreis |
| paraglid. | circle of the horizon | Sehkreis |
| phys. | circle of the horizon | Gesichtskreis |
| tech. | circle of the horizon | Horizont |
| tech. | circle of unit radius | Einheitskreis |
| patents. | circle of users | Verkehrskreis |
| construct. | circle of wall plates | Mauerlattenkranz |
| tech. | circles of equal altitude | Kreise gleicher Hoehe |
| gen. | circles of experts | Fachkreise |
| astr. | circumference of a circle | Kreisperipherie |
| astr. | circumference of a circle | Kreislinie |
| tech. | diameter of bolt circle | Lochkreisdurchmesser |
| tech. | diameter of bolt-hole circle | Lochkreisdurchmesser |
| transp., mech.eng. | diameter of pitch circle | Teilkreisdurchmesser |
| tech. | diameter of screw-hole circle | Lochkreisdurchmesser |
| met., el. | diameter of the electrode circle | Teilkreisdurchmesser |
| met., el. | diameter of the electrode circle | Elektrodenteilkreis |
| microel. | distortion of circles to oval patterns | Verzerrung von Kreisen zu Ovalstrukturen |
| astr. | division error of the circle | Teilfehler des Kreises |
| astr. | division error of the circle | Teilungsfehler des Kreises |
| astr. | division error of the circle | Kreisteilungsfehler |
| astr. | division line of a circle | Kreisstrich |
| phys. | division of the circle | Kreisteilung |
| tech. | equation of a circle | Kreisgleichung |
| opt. | error of circle dividing | Kreisteilungsfehler |
| astr. | examination of divided circles | Kreisteilungsuntersuchung |
| astr. | examination of divided circles | Teilfehleruntersuchung |
| astr. | flexure of the circle | Biegung des Kreises |
| astr. | flexure of the circle | Kreisbiegung |
| construct. | graduated circle of an alidade | Alhidade |
| phys. | graduation of the circle | Kreisteilung |
| med. | greater arterial circle of the iris | Anulus iridis major (circulus arteriosus iridis major) |
| med. | greater arterial circle of the iris | Zona ciliaris iridis (circulus arteriosus iridis major) |
| law, ADR | he has a wide circle of acquaintances | er hat e-n großen Bekanntenkreis |
| mech.eng. | inner circle of the toroid | innerer Kreis des Torus |
| athlet. | inside diameter of the circle | Innendurchmesser des Kreises |
| opt. | intersection of the equator with the great circle | Schnittpunkt des Äquators mit dem Großkreis |
| tech. | involute of a circle | Kreisevolvente |
| tech. | involute of a circle | Abwicklungskurve eines Kreises |
| gen. | large/wide circle of friends | großer Freundeskreis |
| med. | lesser arterial circle of the iris | Anulus iridis minor (circulus arteriosus iridis minor) |
| med. | lesser arterial circle of the iris | Zona pupillaris iridis (circulus arteriosus iridis minor) |
| med. | lesser circle of iris | innerer Irisring (anulus iridis minor) |
| opt. | light path of the circle reading system | Strahlengang der Kreisteilungsablesung |
| astr. | long-period error of circle graduation | Teilungsfehler von langer Periode |
| astr. | long-period error of circle graduation | langperiodischer Teilfehler |
| astr. | long-period error of circle graduation | langperiodischer Kreisteilungsfehler |
| mech.eng. | middle circle of the toroid | mittlerer Kreis des Torus |
| opt. | minimum circle of confusion | Unschärfenkreis |
| opt. | minimum circle of confusion | Zerstreuungskreis |
| opt. | minimum circle of confusion | Streukreis |
| mining. | Mohr’s circle of strain | Mohrscher Dehnungskreis |
| mining. | Mohr’s circle of stress | Mohrscher Spannungskreis |
| astr. | periodic error of circle graduation | periodischer Kreisteilungsfehler |
| astr. | photoelectric recording of circle reading | photoelektrische Registrierung der Kreisablesung |
| astr. | photographic recording registration of circle reading | photographische Registrierung der Kreisablesung |
| gear.tr. | pitch error on a span of 1/8 circle | Teilungs-Summenabweichung über 1/8 Umfang |
| commun. | plane of the great circle | Ebene des großen Kreises |
| earth.sc., mater.sc. | pole of a Mohr Circle | Pol des Mohrschen Spannungskreises |
| construct. | radius of a circle | Halbmesser Radius |
| athlet. | rim of throwing circle | Rand des Wurfkreises |
| gen. | rolling circle error of form | Formabweichung |
| tech. | sector of a circle | Kreissektor |
| phys. | sector of the circle | Kreissektor |
| tech. | segment of a circle | Kreisabschnitt |
| gen. | segment of circle | Kreisabschnitt |
| phys. | segment of the circle | Kreissegment |
| astr. | short-period error of circle graduation | Teilungsfehler von kleiner Periode |
| astr. | short-period error of circle graduation | kurzperiodischer Teilfehler |
| astr. | short-period error of circle graduation | kurzperiodischer Kreisteilungsfehler |
| gymn. | sole circle with legs outside of the hands | Grätschsohlenumschwung |
| opt. | subdivision of the circle | Unterteilung des Kreises |
| astr. | systematic error of circle graduation | systematischer Kreisteilungsfehler |
| tech. | target consisting of circle of silhouettes | Uhrenscheibe |
| tech. | tracing of the circle | Fadenkonstruktion des Kreises |
| med. | vascular circle of the optic nerve | Skleralsichel |
| med. | vascular circle of the optic nerve | Skleralring |
| astr. | zero-point of the circle | Nullpunkt des Kreises |
| astr. | zero-point of the circle | Nullpunkt der Kreisteilung |