interspinous, a. Anat.
(ɪntəˈspaɪnəs)
[inter- 4 a.]
Situated between the spines or spinous processes of vertebræ.
| 1842 E. Wilson Anat. Vade M. (ed. 2) 97 The interspinous ligaments are thin and membranous. 1881 Mivart Cat 54 Adjacent spinous processes are also connected together by membranes..called interspinous ligaments. |
b. spec. in Ichthyol. Situated between the spines of the vertebræ of a teleostean fish, so as to support the dorsal fin.
| 1839–47 Todd Cycl. Anat. III. 845/2 Interspinous bones..embedded in the flesh of the back. 1870 Rolleston Anim. Life Introd. 32 The inter-spinous bones and fin-rays of more highly organized fish. |