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infinitesimal

English → EnglishformaltechnicalInstant · from the shared dictionary
Illustration of "infinitesimal": The word "infinitesimal" describes something so incredibly small that it is practically impossible t

What does "infinitesimal" mean?

The word "infinitesimal" describes something so incredibly small that it is practically impossible to measure or perceive. Think of it as a quantity that approaches zero, such as the microscopic gap between two molecules or a tiny, almost invisible change in a process. It is primarily used in scientific, mathematical, or philosophical contexts to emphasize an extreme lack of magnitude. While you might occasionally hear it used figuratively to describe a "sliver" of hope or a "trace" of evidence, it is generally reserved for situations where precision is key.

"infinitesimal" in conversation

Science Lab

The error in our measurement is infinitesimal.

The error in our measurement is infinitesimal.

So, it won't affect the final result?

So, it won't affect the final result?

Exactly, it's negligible.

Exactly, it's negligible.

Used here to denote a margin of error so small it can be ignored.

Coffee Shop

Do you think there’s an infinitesimal chance he’ll show up?

Do you think there’s an infinitesimal chance he’ll show up?

Honestly? It’s closer to zero.

Honestly? It’s closer to zero.

Used figuratively to emphasize how unlikely an event is.

"infinitesimal" in a sentence

  1. The bacteria are infinitesimal under a standard lens.

    The bacteria are infinitesimal under a standard lens.

  2. There was an infinitesimal change in the chemical balance of the solution.

    There was an infinitesimal change in the chemical balance of the solution.

  3. The calculus theorem relies on the summation of an infinite number of infinitesimal parts.

    The calculus theorem relies on the summation of an infinite number of infinitesimal parts.

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