rachidian, a.
(rəˈkɪdɪən)
Also rha-.
[f. r(h)achid-, assumed stem of Gr. ῥάχις rachis + -ian. Cf. F. rachidien.]
Of or pertaining to a rachis, chiefly in sense 2 b. So also raˈchidial a.
| 1848 [see rachial]. 1851 Woodward Mollusca iv. 27 The rachidian teeth sometimes form a single series. 1866 R. Tate Brit. Mollusks iii. 51 Each transverse row consists of one median or rachidian tooth. 1880 Macdonald in Jrnl. Linn. Soc. XV. 167 If the rhachidian series is suppressed. |