The Collaborative International Dictionary of English v.0.48:

Limbec \Lim"bec\ (l[i^]m"b[e^]k), n. [Abbrev. of alembic.]
   An alembic; a still. [Obs.] --Spenser. Shak.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Limbec \Lim"bec\, v. t.
   To distill. [Obs.] --Dryden.
   [1913 Webster]