a. [f. as next + Gr. τακτικ-ός arranging, f. τακ, root of τάσσ-ειν to arrange: see next.] Of or pertaining to thermotaxis.
1896. Allbutt’s Syst. Med., I. 150. To this [the nervous] systems must be assigned the thermotactic function. Ibid., 151. The question where the thermotactic centre or centres are to be found, and how they act in fevers. Ibid. (1899), VI. 860. The so-called heat fibres, that is the thermotactic.
