Usage examples (5)

• Chiasmus. com is a site devoted to cataloging and discussing chiasmatic phrases:
• Behind this is the anterior margin of the chiasmatic groove, running lateralward on either side to the upper margin of the optic foramen.
• Behind the chiasmatic groove is an elevation, the tuberculum sellæ; and still more posteriorly, a deep depression, the sella turcica, the deepest part of which lodges...
• The middle part of the fossa presents, in front, the chiasmatic groove and tuberculum sellæ; the chiasmatic groove ends on either side at the optic foramen, which...