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1. A pipe that has several lateral outlets to or from other pipes
    
2. A lightweight paper used with carbon paper to make multiple copies
   "an original and two manifolds"
   - manifold paper
    
3. A set of points such as those of a closed surface or an analogue in three or more dimensions

1. Many and varied; having many features or forms
   "manifold reasons"; "our manifold failings"; "manifold intelligence"
   - multiplex

1. Make multiple copies of
    
2. Combine or increase by multiplication
   - multiply

Derived forms: manifolded, manifolds, manifolding

See also: multiple

Type of: copy, increase, mathematical space, paper, pipage, pipe, piping, re-create, topological space

Encyclopedia: Manifold