hemapophysis

from The Century Dictionary.

• noun A lateral process in fishes to which the rib is usually attached.
• noun The second element of the typical hemal arch of a vertebra, situated between the pleurapophysis and the hemal spine, corresponding in part to the neurapophysis of the neural arch.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Anat.) The second element in each half of a hemal arch, corresponding to the sternal part of a rib.