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.
The optic nerves from both eyes meet and cross at the optic chiasm, at the base of the hypothalamus of the brain. At this point the information coming from both eyes is combined and then splits according to the visual field.