irregular combining form of L. teres (see TERETI-). Tereto-setaceous a. [L. sēta bristle], having smooth round bristles. Tereto-subulate a. [L. subula awl], terete and awl-shaped.
1846. Dana, Zooph. (1848), 593. A stony axis,… tereto-subulate and truncate. Ibid., 663. Branches erect, tereto-setaceous.
