sphendone (sfendone)

[ opisthosphendone. (b) An elliptical or semi-elliptical area, or any place of kindred form, as the auditorium of a theater; that end of a stadium which was curved or rounded. The Me enian stadium, which is surrounded by colonnades, has 16 rows of seats in the sphendone. C. O. Müller, Manual of Archæol. (trans.), § 290. sphene (sfen), n. [F. sphène , in allusion to the wedge shape of the crystals, σφήν , a wedge.] The mineral titanite. The transparent green, greenish-yellow, or yellow varieties frequently exhibit a play of colors as brilliant as that of the yellow or green diamond, showing a strong refractive and dispersive power on light. It is quite soft, the hardne being only 5.5. See titanite . sphenethmoid (sfe-neth'moid), a. and n. [ spheneth moid suture or articulation.-2. Representing or combining characters of both sphenoid and ethmoid: as, the sphenethmoid bone. II. n. The sphenethmoid bone, as of the frog's skull: one of the cranial bones, situated in front of the parasphenoid. See girdle - bone , and cuts under Anura2 and Rana . Also spheno-ethmoid. sphenethmoidal (sfe-neth-moi'dal), a. [ sphe nethmoid + -al .] Same as sphenethmoid . - Sphenethmoidal nerve, a branch of the nasal nerve described by Luschka as pa ing through the posterior internal orbital canal to the mucous membrane of the posterior ethmoidal cells and the sphenoidal sinus. Called by Krause the posterior ethmoidal nerve.