Source : Webster's Revised Unabridged Dictionary (1913)

Mucilaginous \Mu`ci*lag"i*nous\, a. [Cf. F. mucilagineux. See
   {Mucilage}.]
   1. Partaking of the nature of, or resembling, mucilage;
      moist, soft, and viscid; slimy; ropy; as, a mucilaginous
      liquid.

   2. Of, pertaining to, or secreting, mucilage; as, the
      mucilaginous glands.

   3. Soluble in water, but not in alcohol; yielding mucilage;
      as, mucilaginous gums or plants. --
      {Mu`ci*lag"i*nous*ness}, n.