The Collaborative International Dictionary of English v.0.48:

adipoma \ad`i*po"ma\ ([a^]d`[i^]*p[=o]"m[.a]), n.; L. pl.
   adipomata ([a^]d`[i^]*p[=o]"m[.a]*t[.a]). [NL. See
   adipose; -oma.] (Med.)
   An obsolete term for lipoma. -- Ad`i*pom"a*tous
   ([a^]d`[i^]*p[o^]m"[.a]*t[u^]s or
   [a^]d`[i^]*p[=o]"m[.a]*t[u^]s), a.
   [AS]