adj of, pertaining to, or secreting, mucilage; as, the mucilaginous glands.
2. mucilaginous ·adj soluble in water, but not in alcohol; yielding mucilage; as, mucilaginous gums or plants.
3. mucilaginous ·adj partaking of the nature of, or resembling, mucilage; moist, soft, and viscid; slimy; ropy; as, a mucilaginous liquid.