extension
/ɪkˈstɛnʃən/ noun
Forms extensions
- noun The act of extending; a stretching out; enlargement in length, breadth, or time; an increase. “Next month the house is undergoing an extension.”
- noun The state of being extended.
- noun That property of a body by which it occupies a portion of space (or time, e.g. "spatiotemporal extension").
- noun (mathematics, group theory, of a group G by a group H) A short exact sequence 1→H→E→G→1, or the group E therein.
- noun (mathematics, homological algebra, of an object A by an object B in an abelian category) A short exact sequence 0→B→E→A→0, or the object E therein.
- noun A part of a building that has been added onto the original.
- noun An outgrowth; a part of something that extends its capabilities. “Parents who treat their children as an extension of themselves”
- noun (semantics) Capacity of a concept or general term to include a greater or smaller number of objects; — correlative of intension.
Synonyms
denotation propagation extension service university extension filename extension file name extension reference lengthiness prolongation telephone extension extension phone elongation annex annexe wing
Antonyms
Etymology
From Middle English extensioun, from Old French estension, from Latin extensiō, extensiōnem.
Webster’s 1913
- noun The act of extending or the state of being extended; a stretching out; enlargement in breadth or continuation of length; increase; augmentation; expansion.
- noun That property of a body by which it occupies a portion of space.
Etymology [L. extensio: cf. F. extension. See Extend, v. t.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “extension”, CC BY-SA 4.0. Details