a. Also kath-. [f. as prec. + -IC.]
1. Phys. Of nerve force: Proceeding from a nerve-center; efferent.
1852. M. Hall, Diastaltic Nervous Syst. (Mayne).
2. Bot. (Of leaves arranged on the axis spirally.) See quots.
1882. Vines, Sachs’ Bot., 190. if the spiral winds from right to left, the right edge of the leaves (as you ascend) is called the Kathodic, the left edge the anodic. Ibid., 199. So that … all the segments are broader on the anodic than on the kathodic side.
1884. Bower & Scott, De Bary’s Phaner. & Ferns, 238. Between the median and descending, or kathodic lateral bundle.
