COLUMELLA

(Lat.), n. f. Koal-ua(u4)-meal'las. Dim. of column a, a column. Fr., columelle. Ger., Columel, Sdulchen. 1. The genus Pisonia. 2. The genus Malache. 3. The genus Ci us. 4. The genus Columellia. 5. The filiform axis in the centre of the urns of mo es, to which the spores are attached; the sporangeium. 6. The uvula. 7. The clitoris. 8. The epipterygoid bone. 9. The pillar of the fornix. 10. In certain corals, a calcareous rod which occupies the axis of the visceral chamber, ll. The central axis of a univalve shell. 12. Of Breschet, the apical portion of the modiolus; of Arnold, its middle portion. 13. The bone or cartilage of the inner ear of Sauropsida, answering to the stapes of mammal i a. [B, 1, 121 (a, 24); L, 31, 121, 147, 343.] C. auris. An o eous and cartilaginous rod extending between the fenestra oval is and the inner surface of the tympanic membrane. LL, 200.1 C. cochleae. See MODIOLUS. Epipterygoidean c. See C. (8th def.). E ential c. A c. formed independently of the septa of a coral and usually unconnected with them. [L, 121.] Parietal c. See Septal c. Pseudo-c. A c. formed by the twisting together, etc.. of the inner edges of the septa of a coral. [L, 121.] Septal c. A c. formed (in corals) by the coalescence of the inner edges of the septa. [L, 121.] [s. 357]