[f. ppl. stem of assumed L. *furcāre, f. furca FORK sb.] intr. To form a fork; to divide into branches.
1846. Dana, Zooph. (1848), 79. These lines frequently furcate or give out lateral branches. Ibid., 198. Stems straight, furcating. Ibid. (1852), Crust., I. 142. Another small fissure, which furcates a short distance above.