verb (used with object)
- to write (a mathematical expression) so as to show the products of its factors.Compare factor(def 10).
- to rewrite (a mathematical expression) as a sum, product, etc., of terms of a particular kind: to expand a function in a power series.
verb (used without object)
- expanded code,
- expanded metal,
- expanded plastic,
Origin of expand
Examples from the Web for expand
He once experimented with dressing as “Hilda the Wicked Witch” as a way to expand his business to Halloween.Kerry Bentivolio: The Congressman Who Believes in Santa Claus|Ben Jacobs|December 24, 2014|DAILY BEAST
It also provides a critical opportunity to expand the ranks of the middle class.
Dr. Grenci, who agrees, also saw it as a way to expand her own knowledge on the subculture and what makes it so appealing.
The center for Justice and Accountability in San Francisco, and other human rights organizations went to work to expand the law.
And the CENTCOM commander said that ISIS figures could expand dramatically based on the nature of its actions.ISIS Has 9,000 ‘Core Fighters.’ Or Maybe 17,000. Or Possibly 30,000.|Tim Mak|November 6, 2014|DAILY BEAST
The steam, if free to expand into the air, would occupy about one thousand seven hundred times the volume of the water.The Library of Work and Play: Electricity and Its Everyday Uses|John F. Woodhull
The air taken into the lungs seemed powerless to expand them.The Grey Lady|Henry Seton Merriman
The lift, expand, and let go must be in proportion to the pitch and power of the tone.The Renaissance of the Vocal Art|Edmund Myer
After the momentary sorrow of parting from his good friend, Delmar, the youth's heart began to expand with joy.The Eagle's Heart|Hamlin Garland
To expand the circle of wants is necessarily to multiply temptations and therefore to increase the number of sins.'The Map of Life|William Edward Hartpole Lecky
Word Origin for expand
early 15c., "spread out, spread flat," from Anglo-French espaundre, Middle French espandre and directly from Latin expandere "to spread out, unfold, expand," from ex- "out" (see ex-) + pandere "to spread, stretch" (see pace (n.)). Sense of "grow larger" first recorded 1640s. Related: Expanded; expanding.