Infinitesimal vs. Infinity: What's the Difference?

Immeasurably or incalculably minute.

The quality or condition of being infinite.

(Mathematics) Capable of having values approaching zero as a limit.

Unbounded space, time, or quantity.

An immeasurably or incalculably minute amount or quantity.

An indefinitely large number or amount.

(Mathematics) A function or variable continuously approaching zero as a limit.

(Mathematics) The limit that a function  is said to approach at x = a when (x) is larger than any preassigned number for all x sufficiently near a.

Incalculably, exceedingly, or immeasurably minute; vanishingly small.

A range in relation to an optical system, such as a camera lens, representing distances great enough that light rays reflected from objects within the range may be regarded as parallel.

(mathematics) Of or pertaining to values that approach zero as a limit.

A distance setting, as on a camera, beyond which the entire field is in focus.

(informal) Very small.

(uncountable) endlessness, unlimitedness, absence of a beginning, end or limits to size.

(mathematics) A non-zero quantity whose magnitude is smaller than any positive number (by definition it is not a real number).

A number that has an infinite numerical value that cannot be counted.

Infinitely or indefinitely small; less than any assignable quantity or value; very small.

An idealised point which is said to be approached by sequences of values whose magnitudes increase without bound.

An infinitely small quantity; that which is less than any assignable quantity.

(uncountable) A number which is very large compared to some characteristic number. For example, in optics, an object which is much further away than the focal length of a lens is said to be "at infinity", as the distance of the image from the lens varies very little as the distance increases further.

Infinitely or immeasurably small;

The symbol ∞. Category:en:Infinity

Unlimited extent of time, space, or quantity; eternity; boundlessness; immensity.

Unlimited capacity, energy, excellence, or knowledge; as, the infinity of God and his perfections.

Endless or indefinite number; great multitude; as an infinity of beauties.

A quantity greater than any assignable quantity of the same kind.

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.

Time without end