Now updated for CSW19. New words, if any, and new inflections of existing words, are shown in red.

acnodal |
relating to an acnode, an isolated point not upon a curve. |

acnode |
an isolated point not upon a curve, but whose coordinates satisfy the equation of the curve so that it is considered as belonging to the curve. |

anticlastic |
of a surface, having a curvature, at a given point and in a particular direction, that is of the opposite sign to the curvature at that point in a perpendicular direction. |

asymptote |
a line (usually straight) that continually approaches a curve but never meets it. |

axoid |
a curve generated by the revolution of a point round an advancing axis. |

brachistochrone |
the curve along which a particle acted on by a force (eg gravity) will pass in the shortest time from one given point to another. |

cardioid |
heart-shaped; (noun) a heart-shaped curve traced by a fixed point on the circumference of a circle rolling around another circle of equal radius. |

catacaustic |
relating to or denoting a caustic curve or caustic surface formed by reflection; (noun) a catacaustic curve or surface. |

catenary |
a curve of the kind formed by a uniform chain hanging freely from two points not in the same vertical line. |

centrode |
a locus traced out by the successive positions of an instantaneous centre of pure rotation. |

cissoid |
a type of mathematical curve. |

conchoid |
a type of plane curve. |

cycloid |
a curve traced by a point on the circumference of a circle which rolls along a straight line. |

cycloidal |
of or like a cycloid, a curve traced by a point on the circumference of a circle which rolls along a straight line. |

cycloidally |
(Adv.) CYCLOIDAL, of or like a cycloid. |

diacaustic |
a type of curve formed by refraction. |

epicycloid |
a curve traced by a point in the circumference of a circle which rolls on the convex side of a fixed circle. |

epicycloidal |
of or like an epicycloid. |

epitrochoid |
a curve like an epicycloid but generated by any point on a radius. |

evolvent |
evolving; (noun) an involute curve. |

harmonogram |
a curve drawn by a harmonograph. |

harmonograph |
an instrument for drawing curves representing vibrations. |

helicoid |
a flattened spiral; a curve generated when a curve is twisted around an axis and advanced along the axis at a rate having a constant ratio. |

helicoidal |
relating to a helicoid, a flattened spiral. |

helicoidally |
(Adv.) HELICOIDAL, relating to a helicoid, a flattened spiral. |

hodograph |
a curve of which the radius vector represents the velocity of a moving particle. |

hodographic |
relating to a hodograph. |

hyperbola |
a mathematical curve. |

hyperbolic |
relating to a kind of mathematical curve. |

hyperbolical |
relating to a kind of mathematical curve. |

hyperbolically |
(Adv.) HYPERBOLICAL, relating to a kind of mathematical curve. |

hypocycloid |
a curve generated by a point on the circumference of a circle which rolls on the inside of another circle. |

hypocycloidal |
of or like a hypocycloid. |

hypotrochoid |
the curve traced by a point on the radius, or radius produced, of a circle rolling within another circle. |

isochor |
a curve representing the variation of some quantity under conditions of constant volume. |

isochore |
a curve representing variation of some quantity under conditions of constant volume. |

isochoric |
of or like an isochor, a curve representing variation of some quantity under conditions of constant volume. |

kurtosis |
the relative degree of sharpness of peak of a distribution curve. |

leptokurtic |
in statistics, referring to a distribution showing a particular type of kurtosis. |

limacon |
(Fr.) a type of mathematical curve. |

liquidus |
(Lat.) a curve plotted on a graph showing how temperature affects the composition of a melting or solidifying mixture. |

parabola |
(Greek) a type of curve, one of the conic sections. |

parabolic |
of or like a parabola. |

parabolical |
of or like a parabola. |

parabolically |
(Adv.) PARABOLICAL, of or like a parabola. |

platykurtic |
in statistics, referring to a distribution showing a particular type of kurtosis. |

quadratrix |
a curve by which a circle may be squared. |

quadric |
of or pertaining to the second degree; (noun) a quadric curve. |

secant |
cutting (noun) a cutting line |

secantly |
(Adv.) SECANT, cutting. |

sinusoid |
a curve having the form of a sine wave. |

sinusoidal |
of or pertaining to a sinusoid. |

sinusoidally |
(Adv.) SINUSOIDAL, of or pertaining to a sinusoid. |

spinode |
a cusp or stationary point of a curve. |

spiric |
like a tore or anchor-ring; (noun) a curve, the plane section of a tore. |

strophoid |
a type of curve on a graph. |

tacnode |
a point of contact between two curves. |

trajectory |
the curve that a body (as a planet or comet in its orbit or a rocket) describes in space. |

trisectrix |
a certain curve of a polar equation. |

trochoid |
a curve traced by a fixed point in plane of a circle. |

trochoidal |
of or pertaining to a trochoid. |

trochoidally |
(Adv.) TROCHOIDAL, of or pertaining to a trochoid. |