Definition of manifold

• a. - Various in kind or quality; many in number; numerous; multiplied; complicated.
• a. - Exhibited at divers times or in various ways; -- used to qualify nouns in the singular number.
• n. - A copy of a writing made by the manifold process.
• n. - A cylindrical pipe fitting, having a number of lateral outlets, for connecting one pipe with several others.
• n. - The third stomach of a ruminant animal.
• v. t. - To take copies of by the process of manifold writing; as, to manifold a letter.