Definify.com
Webster 1913 Edition
Infinity
In-fin′i-ty
,Noun.
pl.
Infinities
(#)
. 1.
Unlimited extent of time, space, or quantity; eternity; boundlessness; immensity.
Sir T. More.
There can not be more
infinities
than one; for one of them would limit the other. Sir W. Raleigh.
2.
Unlimited capacity, energy, excellence, or knowledge;
as, the
. infinity
of God and his perfectionsHooker.
3.
Endless or indefinite number; great multitude; as an infinity of beauties.
Broome.
4.
(Math.)
A quantity greater than any assignable quantity of the same kind.
☞ Mathematically considered, infinity is always a limit of a variable quantity, resulting from a particular supposition made upon the varying element which enters it.
Davies & Peck (Math. Dict.).
5.
(Geom.)
That part of a line, or of a plane, or of space, which is infinitely distant. In modern geometry, parallel lines or planes are sometimes treated as lines or planes meeting at infinity.
Circle at infinity
, an imaginary circle at infinity, through which, in geometry of three dimensions, every sphere is imagined to pass.
– Circular points at infinity
. See under
Circular
.Webster 1828 Edition
Infinity
INFIN'ITY
,Noun.
1.
Unlimited extent of time, space or quantity; boundlessness. We apply infinity to God and his perfections; we speak of the infinity of his existence, his knowledge, his power, his goodness and holiness.2.
Immensity; indefinite extent.3.
Endless or indefinite number; a hyperbolical use of the word; as an infinity of beauties.