## Definitions for manifoldˈmæn əˌfoʊld

### Princeton's WordNet(4.00 / 1 vote)Rate this definition:

1. manifold(noun)

a pipe that has several lateral outlets to or from other pipes

2. manifold paper, manifold(noun)

a lightweight paper used with carbon paper to make multiple copies

"an original and two manifolds"

a set of points such as those of a closed surface or an analogue in three or more dimensions

4. manifold, multiplex(verb)

many and varied; having many features or forms

"manifold reasons"; "our manifold failings"; "manifold intelligence"; "the multiplex opportunities in high technology"

5. manifold(verb)

make multiple copies of

"multiply a letter"

6. multiply, manifold(verb)

combine or increase by multiplication

"He managed to multiply his profits"

### Webster Dictionary(0.00 / 0 votes)Rate this definition:

various in kind or quality; many in number; numerous; multiplied; complicated

exhibited at divers times or in various ways; -- used to qualify nouns in the singular number

3. Manifold(noun)

a copy of a writing made by the manifold process

4. Manifold(noun)

a cylindrical pipe fitting, having a number of lateral outlets, for connecting one pipe with several others

5. Manifold(noun)

the third stomach of a ruminant animal

6. Manifold(verb)

to take copies of by the process of manifold writing; as, to manifold a letter

7. Origin: [AS. manigfeald. See Many, and Fold.]

### Freebase(0.00 / 0 votes)Rate this definition:

1. Manifold

In mathematics, a manifold is a topological space that near each point resembles Euclidean space. More precisely, each point of an n-dimensional manifold has a neighbourhood that is homeomorphic to the Euclidean space of dimension n. Lines and circles, but not figure eights, are one-dimensional manifolds. Two-dimensional manifolds are also called surfaces. Examples include the plane, the sphere, and the torus, which can all be realized in three dimensions, but also the Klein bottle and real projective plane which cannot. Although near each point, a manifold resembles Euclidean space, globally a manifold might not. For example, the surface of the sphere is not a Euclidean space, but in a region it can be charted by means of geographic maps: map projections of the region into the Euclidean plane. When a region appears in two neighbouring maps, the two representations do not coincide exactly and a transformation is needed to pass from one to the other, called a transition map. The concept of a manifold is central to many parts of geometry and modern mathematical physics because it allows more complicated structures to be described and understood in terms of the relatively well-understood properties of Euclidean space. Manifolds naturally arise as solution sets of systems of equations and as graphs of functions. Manifolds may have additional features. One important class of manifolds is the class of differentiable manifolds. This differentiable structure allows calculus to be done on manifolds. A Riemannian metric on a manifold allows distances and angles to be measured. Symplectic manifolds serve as the phase spaces in the Hamiltonian formalism of classical mechanics, while four-dimensional Lorentzian manifolds model spacetime in general relativity.

### Chambers 20th Century Dictionary(0.00 / 0 votes)Rate this definition:

1. Manifold

man′i-fōld, adj. various in kind or quality: many in number: multiplied.—adj. Man′ifolded (Spens.), having many folds or complications.—adv. Man′ifoldly.—n. Man′ifoldness.

### Numerology

1. Chaldean Numerology

The numerical value of manifold in Chaldean Numerology is: 6

2. Pythagorean Numerology

The numerical value of manifold in Pythagorean Numerology is: 2

# Translations for manifold

### From our Multilingual Translation Dictionary

• varieta, rozmnožit
• mangfoldighed
• Verteiler, mannigfaltig, vielfältig, Mannigfaltigkeit
• πολυσωλήνας, πολύμορφος, πολύπτυχος, πολυειδής, πολυχώρος, πολλαπλός
• colector, variedad, múltiple
• monisto
• variété
• יריעה טופולוגית
• sokfajta, sokféle, sokszor, sokaság
• molteplice, varietà, manifesto, multiforme
• 多様体
• многуобразие
• talrijk, veelvuldig, variëteit, divers, veelvoudig
• kolektor, rozmaitość
• коллектор, копия, трубопровод, разнообразный, многообразие
• mångfald
• teksir, çokkatlı, dağıtıcı
• کئی گنا

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