# Infinitesimal definition

ĭnfĭn-ĭ-tĕsə-məl
Capable of having values approaching zero as a limit.
Immeasurably or incalculably minute.
(mathematics) Capable of having values approaching zero as a limit.
The definition of infinitesimal is something extremely small or very close to 0, or too small to be measured.

When you have only a single grain of rice, this is an example of a time when you have an infinitesimal amount of rice.

An immeasurably or incalculably minute amount or quantity.
noun
(mathematics) A function or variable continuously approaching zero as a limit.
noun
(math.) Of or pertaining to an infinitesimal.
An infinitesimal quantity.
noun
(math.) A variable that approaches zero as a limit.
noun
Too small to be measured.
A function or variable continuously approaching zero as a limit.
noun

Do you ever get the feeling that you are but an infinitesimal speck, swallowed by the vastness of the universe and beyond?

(mathematics) Of or pertaining to values that approach zero as a limit.
(informal) Very small.
(mathematics) A non-zero quantity whose magnitude is smaller than any positive number (by definition it is not a real number).
noun

Singular:
infinitesimal
Plural:
infinitesimals

## Origin of infinitesimal

• From New Latin īnfīnītēsimus infinite in rank from Latin īnfīnītus infinite infinite