sphenotic

from The Century Dictionary.

• noun In ichthyology, an anterodorsal ossification of the auditory capsule. It articulates above with the pterotic and frontal, and below with the alisphenoid and proötic. It usually bears part of the concavity for the reception of the head of the hyomandibular.
• Of or pertaining to the sphenoid bone and the otic capsule, or hard parts of the auditory organ: as, a sphenotic ossification in various fishes. See cut under teleost.
• noun In ornithology, a postfrontal process of bone, or a separate ossification, developed in relation with sphenoidal and otic elements, entering into the posterior boundary of the orbital cavity.

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

• adjective (Anat.) Of, pertaining to, or designating, the sphenotic bone.
• adjective (Anat.) a bone on the anterior side of the auditory capsule of many fishes, and connected with, or adjoining, the sphenoid bone.
• noun (Anat.) The sphenotic bone.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective anatomy Of or relating to a bone on the anterior side of the auditory capsule of many fishes, connected with, or adjoining, the sphenoid bone.
• noun anatomy The sphenotic bone.