See Also: tractrix(medicine)
tractrix(dictionary)

Dyothelite (iou) and tractrix (iou)


Dyothelite (iou)



Dyothelite noun. . M19.
[from Greek duo two + theletes agent-noun from thelein to will + -ITE1, after MONOTHELITE.]
Theology. A person who holds the (orthodox) doctrine that Jesus had two wills, divine and human. Cf. MONOTHELITE.

tractrix (iou)



tractrix noun. . E18.
[mod. Latin, fem. of TRACTOR: see -TRIX. Cf. DIRECTRIX.]
Geometry. A curve whose tangents all intercept the x-axis at the same distance from the point of contact, being the involute of a catenary. Also, each of a class of curves similarly traced by the end of a rigid rod moving along a fixed line or curve.