opisthion

English

Etymology

From New Latin opisthion, from Ancient Greek ὀπίσθιος (opísthios, “rear, behind”), from ὄπισθεν (ópisthen, “at the back, backwards”). By surface analysis, opistho- +‎ -ion.

Noun

opisthion (plural opisthia)

1. (anatomy) The middle of the posterior margin of the foramen magnum of the skull.

References

• “opisthion”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.