01 n. Unlimited extent of time, space, or quantity; eternity; boundlessness; immensity.
pl.
Infinities ((#))
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1.
Unlimited extent of time, space, or quantity; eternity; boundlessness; immensity.“There can not be more infinities than one; for one of them would limit the other.” — Sir W. Raleigh.
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2.
Unlimited capacity, energy, excellence, or knowledge; as, the infinity of God and his perfections.
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3.
Endless or indefinite number; great multitude; as an infinity of beauties.
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4.
A quantity greater than any assignable quantity of the same kind.(Math.)
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5.
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.(Geom.)
Phrases & compounds
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.