The Collaborative International Dictionary of English v.0.48:

Sorosis \So*ro"sis\, n. [NL., fr. Gr. ? a heap.] (Bot.)
   A fleshy fruit formed by the consolidation of many flowers
   with their receptacles, ovaries, etc., as the breadfruit,
   mulberry, and pineapple.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Sorosis \So*ro"sis\, n. [NL. See Sororize.]
   A woman's club; an association of women. [U. S.]
   [1913 Webster]