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v. ex·pand·ed, ex·pand·ing, ex·pands
1. To increase the size, volume, quantity, or scope of; enlarge: expanded her store by adding a second room. See Synonyms at increase.
2. To express at length or in detail; enlarge on: expanded his remarks afterward.
3. To open (something) up or out; spread out: The bird expanded its wings and flew off.
4. Mathematics To write (a quantity) as a sum of terms in an extended form.
1. To become greater in size, volume, quantity, or scope: Air expands when heated. This critic's influence is expanding.
2. To speak or write at length or in detail: expand on a favorite topic.
3. To open up or out; unfold: The chair expands to form a daybed.
[Middle English expanden, to spread out, from Latin expandere : ex-, ex- + pandere, to spread; see petə- in Indo-European roots.]
1. (Printing, Lithography & Bookbinding) Also: extended (of printer's type) wider than usual for a particular height. Compare condensed
2. (Chemistry) (of a plastic) having been foamed during manufacture by the introduction of a gas in order to make a light packaging material or heat insulator: expanded polystyrene. See also expanded metal
1. increased in area, bulk, or volume; enlarged; extended: an expanded version of a story.
2. (of a typeface) wider in proportion to its height. Compare condensed (def. 4).