Source : Webster's Revised Unabridged Dictionary (1913)

Lipoma \Li*po"ma\ (l[i^]*p[=o]"m[.a]), n. [NL., from Gr. li`pos
   fat + -oma.] (Med.)
   A tumor consisting of fat or adipose tissue. --
   {Li*pom"a*tous} (-p[o^]m"[.a]*t[u^]s), a.

Source : WordNet®

lipoma
     n : a tumor consisting of fatty tissue [syn: {adipose tumor}]
     [also: {lipomata} (pl)]