SORUS
So"rus, n.; pl. Sori. Etym: [NL., fr. Gr. (Bot.)

Defn: One of the fruit dots, or small clusters of sporangia, on the back of the fronds of ferns.

SORWE
Sor"we, n. & v.

Defn: Sorrow. [Obs.] Chaucer.

SORWEFUL
Sor"we*ful, a.

Defn: Sorrowful. [Obs.] Chaucer.

SORY
So"ry, n. Etym: [L. sory, Gr. (Old Min. Chem.)

Defn: Green vitriol, or some earth imregnated with it.

SOS SOS.

Defn: The letters signified by the signal ( . . . —-. . . ) prescribed by the International Radiotelegraphic Convention of 1912 for use by ships in distress.