Definition of: manifold

(man′ə·fōld) v.t.
1. To make more than one copy of at once, as with carbon paper on a typewriter.
2. To multiply.
—adjective
1. Of great variety; numerous.
2. Manifested in many ways, or including many acts or elements; complex; being so in many ways or for many reasons.
3. Existing in great abundance.
4. Comprising or uniting several parts or channels of the same kind, as a pipe with several outlets. See synonyms under COMPLEX, MANY.
—noun
1. A copy made by manifolding.
2. Math. A number of objects related under one system.
3. A tube with one or more inlets and two or more outlets; a T branch, as the pipe between carburetor and engine, in internal–combustion engines with more than one cylinder. [OE manigfeald varied, numerous]
—man′i·fold·ly adverb
—man′i·fold·ness noun