extension
Language: English
Part of speech: noun
Pronunciation: ipa: /ɪkˈstɛnʃən/
ipa: /ɛkˈstɛnʃən/
Forms: form: extensions
Etymology: From Middle English extensioun, from Old French estension, from Latin extensiō, extensiōnem.
Senses: examples: text: Next month the house is undergoing an extension.
text: Due to the unforeseen circumstances, you are allowed an extension of two weeks to complete the task.
text: "Keep off Conductor Rails" said red-painted notices at the platform ends, for third-rails were laid in many places even where electric trains never normally ran, and there had been many rumours of impending electrification of the Wirral, as a natural extension of the Mersey system, a quarter of a century before the change was actually made.
ref: 1954 March, W. A. Tuplin, “Recollections of the Wirral Railway”, in Railway Magazine, page 167:
glosses: The act of extending; a stretching out; enlargement in length, breadth, or time; an increase.
examples: text: For station is properly no rest, but one kind of motion, relating unto that which physicians (from Galen) do name extensive or tonical; that is, an extension of the muscles and organs of motion, maintaining the body at length, or in its proper figure.
ref: 1650, Thomas Browne, Pseudodoxia Epidemica: […], 2nd edition, London: […] A[braham] Miller, for Edw[ard] Dod and Nath[aniel] Ekins, […], →OCLC:
glosses: The state of being extended.
glosses: That property of a body by which it occupies a portion of space (or time, e.g. "spatiotemporal extension").
topics: group-theory
mathematics
sciences
glosses: A short exact sequence 1→H→E→G→1, or the group E therein.
raw_tags: of a group G by a group H
topics: mathematics
sciences
qualifier: homological algebra
glosses: A short exact sequence 0→B→E→A→0, or the object E therein.
raw_tags: of an object A by an object B in an abelian category
glosses: A part of a building that has been added onto the original.
examples: text: Parents who treat their children as an extension of themselves
text: My research is an extension of the work of my mentor.
text: In smaller communities, the public schools are virtual extensions of each town's chief religion — "educating" kids to all the prejudices of that belief.
ref: 1978 December 9, Mitzel, “Post-Briggs Blues”, in Gay Community News, volume 6, number 20, page 5:
glosses: An outgrowth; a part of something that extends its capabilities.
examples: text: Perversely, we love John Wick himself. That lethal, bereaved assassin is a good bad guy for our times, the natural extension of Tony Soprano, Walter White and all the other heroic antiheroes the culture has embraced.
ref: 2023 March 14, Caryn James, “John Wick: Chapter 4: 'Soars above most action films'”, in BBC:
text: In addition to concepts and conceptual senses, Frege holds that there are extensions of concepts. Frege calls an extension of a concept a ‘course of values’. A course of values is determined by the value that the concept has for each of its arguments. Thus, the course of values for the concept __ is a dog records that its value for the argument Zermela is the True and for Socrates is the False, and so on. If two concepts have the same values for every argument, then their courses of values are the same. Thus, courses of values are extensional.
ref: 2011 July 20, Edwin Mares, “Propositional Functions”, in The Stanford Encyclopedia of Philosophy, retrieved 15 Jul 2012:
topics: human-sciences
linguistics
sciences
semantics
glosses: Capacity of a concept or general term to include a greater or smaller number of objects; — correlative of intension.
topics: human-sciences
linguistics
sciences
semantics
glosses: semantic widening, broadening of meaning
topics: banking
business
finance
glosses: A written engagement on the part of a creditor, allowing a debtor further time to pay a debt.
topics: medicine
sciences
glosses: The operation of stretching a broken bone so as to bring the fragments into the same straight line.
topics: hobbies
lifestyle
sports
weightlifting
glosses: An exercise in which an arm or leg is straightened against resistance.
topics: fencing
government
hobbies
lifestyle
martial-arts
military
politics
sports
war
glosses: A simple offensive action, consisting of extending the weapon arm forward.
topics: communications
electrical-engineering
engineering
natural-sciences
physical-sciences
telecommunications
glosses: A numerical code used to indicate a specific telephone in a telecommunication network.
examples: text: Files with the .txt extension usually contain text.
text: If you plan to plot data with error bars, you must name them with an. ERR extension. Failure to do so will crash the system, and you will lose your precious work.
ref: 1989, PC Mag, volume 8, number 5, page 276:
topics: computing
engineering
mathematics
natural-sciences
physical-sciences
sciences
glosses: Ellipsis of file extension.
examples: text: a browser extension
topics: computing
engineering
mathematics
natural-sciences
physical-sciences
sciences
glosses: An optional software component that adds functionality to an application.
topics: human-sciences
logic
mathematics
philosophy
sciences
glosses: The set of tuples of values that, used as arguments, satisfy the predicate.
topics: grammar
human-sciences
linguistics
sciences
glosses: A kind of derivative morpheme applied to verbs in Bantu languages.
qualifier: ring theory
glosses: The ideal in the codomain generated by the image of the given ideal under the given homomorphism.
raw_tags: of an ideal in the domain of a ring homomorphism
topics: education
glosses: University programs that are targeted at the broader (usually adults) community whose participants are not full-time enrolled students.
topics: cosmetics
lifestyle
glosses: Clipping of hair extension, nail extension, or eyelash extension.
Synonyms: topics: semantics
linguistics
human-sciences
sciences
word: denotation
Derived terms: agricultural extension
algebraic extension
back extension
Buck's extension
by extension
coextension
conservative extension
convergent extension
counterextension
curb extension
demarc extension
extensional
extension block
extension cable
extension cord
extension field
extensionist
extension ladder
extension lead
extensionless
extension reel
Extension Scout
extension table
extensograph
field extension
file extension
filename extension
flexoextension
flextension
Galois extension
hair extension
hyperextension
inextension
Kan extension
leg extension
life extension
metaphorical extension
nonextension
normal extension
over-extension
overextension
penis extension
postextension
prototype extension
separable extension
simple extension
superextension
tiller extension
triceps extension
under-extension
underextension
university extension
university extensional
Related terms: word: extend
word: extense
word: extent
topics: semantics
linguistics
human-sciences
sciences
word: intension
topics: semantics
linguistics
human-sciences
sciences
word: comprehension
word: flexion