Turbit definition, one of a breed of domestic pigeons having a stout, roundish body, a short head and beak, and a ruffled breast and neck. See more. Dictionary.com
The anterior angle. Lesions that involve the anterior angle of the chiasm, the point at which the optic nerve passes into and forms the chiasm, may show a junctional scotoma (Traquair, 1949) since there is at this point separation of the crossing and uncrossed fibers.
In the median area the floor is formed by the body of the sphenoid. In front, the optic groove (sulcus chiasmatis) leads on each side into the optic foramen. The sulcus does not lodge the optic chiasma, which lies above and behind it.