Defn: A trickish knave; one who carries on any business, especially legal business, in a mean and dishonest way. [Slang, U.S.]
SI
Si. Etym: [It.] (Mus.)
Defn: A syllable applied, in solmization, to the note B; more recently, to the seventh tone of any major diatonic scale. It was added to Guido's scale by Le Maire about the end of the 17th century.
SIAGA
Si*a"ga, n. (Zoöl.)
Defn: The ahu, or jairou.
SIALOGOGUE
Si*al"o*gogue, n. Etym: [Gr. si`alon saliva + sialagogue.] (Med.)
Defn: An agent which promotes the flow of saliva.
SIAMANG
Si"a*mang`, n. Etym: [Malay siamang.] (Zool.)
Defn: A gibbon (Hylobates syndactylus), native of Sumatra. It has the second and third toes partially united by a web.
SIAMESE
Si`a*mese", a.