The Collaborative International Dictionary of English v.0.48:

Muciparous \Mu*cip"a*rous\ (m[-u]*s[i^]"p[.a]*r[u^]s), a. [Mucus
   + L. parere to produce.] (Physiol.)
   Secreting, or producing, mucus or mucin.
   [1913 Webster]