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circle, n.
  1. hringur, hringferill, hringlína
    -> asymptotic circle, auxiliary circle, base circle, bundle of circles, circumcircle, circumscribed circle, cycle 7, escribed circle, excircle, generating circle, great circle, imaginary circle, incircle, inscribed circle, nine-point circle, nine-point circle theorem, one-sphere, oriented circle, orthoptic circle, osculating circle, pencil of circles, polar circle, principal circle, quadrature of the circle, rolling circle, semicircle, sheaf of circles, small circle, squaring the circle, unit circle
  2. = circular disc
  3. -> vicious circle
asymptotic circle
  1. aðfelluhringur
auxiliary circle
  1. (of a conic) meginhringur, meginhvirfilhringur, hjálparhringur
    = major circle
    -> eccentric circle, minor circle
base circle
  1. (of a circular cone) grunnhringur
bundle of circles
  1. hringabundin, bundin af hringjum
    = sheaf of circles
circle group
  1. hringgrúpa
circle method
  1. hringaðferð
circle of contact
  1. snertihringur
circle of convergence
  1. samleitnihringskífa
  2. samleitnihringur
circle of curvature
  1. hjúfurhringur, krappahringur, sveigjuhringur
    = osculating circle
circle of inversion
  1. umhverfingarhringur, spegilhringur
circumcircle, n.
  1. umritaður hringur
    = circumscribed circle
circumscribed circle
  1. umritaður hringur
    = circumcircle
director circle
  1. = directrix circle
  2. réttsýnishringur
    = orthoptic circle
directrix circle
  1. stýrihringur
    = director circle 1
eccentric circle
  1. (of an ellipse or hyperbola) hvirfilhringur
    -> auxiliary circle, eccentric 2
escribed circle
  1. útinnritaður hringur, úthringur, utanverður snertihringur
    = excircle
excircle, n.
  1. útinnritaður hringur, úthringur, utanverður snertihringur
    = escribed circle
generating circle
  1. (of a cycloid) hjól
    = rolling circle
great circle
  1. stórhringur
    -> small circle
imaginary circle
  1. ímyndaður hringur
incircle, n.
  1. innritaður hringur, innanverður snertihringur
    = inscribed circle
inscribed circle
  1. innritaður hringur, innanverður snertihringur
    = incircle
major circle
  1. meginhringur, meginhvirfilhringur, hjálparhringur
    = auxiliary circle
    -> eccentric circle, minor circle
minor circle
  1. aukahringur, aukahvirfilhringur
    -> eccentric circle, major circle
nine-point circle
  1. níupunktahringur
nine-point circle theorem
  1. setningin um níupunktahringinn
    = Feuerbach's theorem
oriented circle
  1. áttaður hringur
    = cycle 7
orthoptic circle
  1. réttsýnishringur
    = director circle 2
osculating circle
  1. hjúfurhringur, krappahringur, sveigjuhringur
    = circle of curvature
pencil of circles
  1. vöndur af hringum, hringavöndur, hneppi af hringum, hringahneppi
polar circle
  1. skauthringur
principal circle
  1. meginhringur
quadrature of the circle
  1. ferningun hrings
    = squaring the circle
rolling circle
  1. hjól
    = generating circle
semicircle, n.
  1. hálfhringur
sheaf of circles
  1. bundin af hringjum, hringabundin
    = bundle of circles
small circle
  1. smáhringur
    -> great circle
squaring the circle
  1. ferningun hrings
    = quadrature of the circle
unit circle
  1. einingarhringur
vicious circle
  1. vítahringur, hringrök
    = vicious circle