expansion - Definition | Dictionary definition of expansion

Definition of expansion

the act of increasing (something) in size or volume or quantity or scope

Antonyms:: contraction
the act of decreasing (something) in size or volume or quantity or scope

Types:: show 12 types...; hide 12 types...; dilatation, dilation
the act of expanding an aperture; vasodilation
dilation of blood vessels (especially the arteries); mydriasis
reflex pupillary dilation as a muscle pulls the iris outward; occurs in response to a decrease in light or certain drugs; distension, distention
the act of expanding by pressure from within; stretching
act of expanding by lengthening or widening; tension
the action of stretching something tight; extension
act of stretching or straightening out a flexed limb; inflation
the act of filling something with air; magnification
the act of expanding something in apparent size; extension
act of expanding in scope; making more widely available; spread, spreading
act of extending over a wider scope or expanse of space or time; stretch
extension to or beyond the ordinary limit

a function expressed as a sum or product of terms

"the expansion of (a+b)^2 is a^2 + 2ab + b^2"

Type of:: function, map, mapping, mathematical function, single-valued function
(mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function)

a discussion that provides additional information

Types:: expatiation
a discussion (spoken or written) that enlarges on a topic or theme at length or in detail; embellishment, embroidery
elaboration of an interpretation by the use of decorative (sometimes fictitious) detail

Type of:: discourse, discussion, treatment
an extended communication (often interactive) dealing with some particular topic

adding information or detail

Types:: amplification, elaboration
addition of extra material or illustration or clarifying detail; annotating, annotation
the act of adding notes; subjoining, subjunction, supplementation
the act of supplementing