Webster's Revised Unabridged Dictionary · 1913

Taxis

Taxis , noun

[New Latin, from Greek ta`xis a division or arrangement, from ta`ssein to arrange.]

1.
(Surgery) Manipulation applied to a hernial tumor, or to an intestinal obstruction, for the purpose of reducing it. — Dunglison
2.
In technical uses, as in architecture, biology, grammar, etc., arrangement; order; ordonnance.
3.
a reflexive movement by a motile organism by which it moves or orients itself in relation to some source of stimulation; as, chemotaxis, the motion toward or away from gradients of certain chemical compounds.

-taxis , noun

combining form for taxis.