a. Anat. [f. Gr. ἐπίπλευρ-ος (f. ἐπί upon + πλευρά rib, side) + -AL 1.] Situated upon a rib. Also quasi-sb.
1866. Owen, Anat. Vertebr., I. 43. These ‘scleral’ spines are termed … ‘epineurals,’ ‘epicentrals,’ and ‘epipleurals,’ according to the vertebral element they may adhere to.
1870. Rolleston, Anim. Life, 20. Each rib … has an epipleural process.
1880. Günther, Fishes, 77. The abdominal vertebræ have parapophyses developed with epipleural spines.
