different between liverwurst vs topology

English

Etymology

Partial calque of German Leberwurst, equivalent to liver +? wurst.

Pronunciation

• (UK) IPA^(key): /?l?v?w??st/

Noun

liverwurst (usually uncountable, plural liverwursts)

1. liver sausage

Translations

English

Etymology

From Late Latin topologia, from Ancient Greek ????? (tópos, “place, locality”) + -(o)logy (“study of, a branch of knowledge”).

Pronunciation

• (Received Pronunciation) IPA^(key): /t??p?l?d?i/
• (General American) IPA^(key): /t??p?l?d?i/
• Rhymes: -?l?d?i

Noun

topology (countable and uncountable, plural topologies)

1. (mathematics, uncountable) The branch of mathematics dealing with those properties of a geometrical object (of arbitrary dimensionality) that are unchanged by continuous deformations (such as stretching, bending, etc., without tearing or gluing).
   • 1970 [Addison-Wesley], Stephen Willard, General Topology, 2012, Dover, page v,

     This book is designed to develop the fundamental concepts of general topology which are the basic tools of working mathematicians in a variety of fields.

   • 1974 [Crane, Russak & Co.], H. Graham Flegg, From Geometry to Topology, 2001, Dover, page v,

     Many university courses in topology plunge immediately into a formalized and entirely abstract presentation of topological concepts.

2. (topology) Any collection ? of subsets of a given set X that contains both the empty set and X, and which is closed under finitary intersections and arbitrary unions.
   • 2016, Ehud Hrushovski, François Loeser, Non-Archimedean Tame Topology and Stably Dominated Types (AM-192), Princeton University Press, page 43,

     It is easy to verify that the topology generated by these basic open sets coincides with the definition of the topology on ${\displaystyle {\widehat {V}}}$ above, for the Zariski topology and the sheaf of functions ${\displaystyle \operatorname {val} (f),f}$ regular.

3. (medicine) The anatomical structure of part of the body.
4. (computing) The arrangement of nodes in a communications network.
5. (technology) The properties of a particular technological embodiment that are not affected by differences in the physical layout or form of its application.
6. (topography) The topographical study of geographic locations or given places in relation to their history.
7. (dated) The art of, or method for, assisting the memory by associating the thing or subject to be remembered with some place.

Synonyms

• (branch of mathematics): analysis situs (obsolete), geometria situs (obsolete)

Hypernyms

• (collection of subsets): pi-system, ?-system

Meronyms

• open set

Holonyms

• topological space

Derived terms

Related terms

Translations

See also

• homotopy
• Appendix:Glossary of topology

Further reading

• topology on Wikipedia.Wikipedia
• Homotopy on Wikipedia.Wikipedia

Anagrams

• optology