The Collaborative International Dictionary of English v.0.48:

Limoniad \Li*mo"ni*ad\ (l[-i]*m[=o]"n[i^]*[a^]d), n. [L.
   limoniades, pl., Gr. leimwnia`des, fr. leimw`n meadow.]
   (Class. Myth.)
   A nymph of the meadows; -- called also Limniad.
   [1913 Webster]