||Sy*co"sis (?), n. [NL., fr. Gr. &?;, fr. &?; a fig.] (Med.) A
||pustular eruption upon the scalp, or the beared part of the face,
||whether due to ringworm, acne, or impetigo.
Syd"er*o*lite (?), n. A kind of Bohemian earthenware resembling the
Wedgwood ware.
Sye (?), obs. imp. of See. Saw. Chaucer.
Sy"e*nite (?), n. [L. Syenites (sc. lapis), from Syene, Gr. &?;.]
(Min.) (a) Orig., a rock composed of quartz, hornblende, and feldspar,
anciently quarried at Syene, in Upper Egypt, and now called granite.
(b) A granular, crystalline, ingeous rock composed of orthoclase and
hornblende, the latter often replaced or accompanied by pyroxene or
mica. Syenite sometimes contains nephelite (elæolite) or leucite, and
is then called nephelite (elæolite) syenite or leucite syenite.
Sy`e*nit"ic (?), a. [Written also sienitic.] 1. Relating to Syene; as,
Syenitic inscriptions.