The Collaborative International Dictionary of English v.0.48:

bosomed \bos"omed\ (b[oo^]z"[u^]md), a.
   1. Having, or resembling, bosom; kept in the bosom; hidden.
      [1913 Webster]

   2. [Combining form] Having such a bosom; as, a big-bosomed
      woman.
      [PJC]

The Collaborative International Dictionary of English v.0.48:

bosom \bos"om\, v. t. [imp. & p. p. Bosomed (-[u^]md); p. pr.
   & vb. n. Bosoming.]
   1. To inclose or carry in the bosom; to keep with care; to
      take to heart; to cherish.
      [1913 Webster]

            Bosom up my counsel,
            You'll find it wholesome.             --Shak.
      [1913 Webster]

   2. To conceal; to hide from view; to embosom.
      [1913 Webster]

            To happy convents bosomed deep in vines. --Pope.
      [1913 Webster]

WordNet (r) 3.0 (2006):

bosomed
    adj 1: having a bosom as specified or having something likened
           to a bosom; usually used in compounds; "full-bosomed
           women"; "the green-bosomed earth"