infinitesimal

infinitesimal is defined in Webster's Unabridged Dictionary (1913) with 2 senses, and appears in Roget's Thesaurus (1911) with 8 related terms. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.Infinitely or indefinitely small; less than any assignable quantity or value; very small. Infinitesimal calculus, the different and the integral calculus, when developed according to the method used by Leibnitz, who regarded the increments given to variables as infinitesimal.
  2. 2.An infinitely small quantity; that which is less than any assignable quantity.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

Synonyms

Related terms (Roget's 1911)

Source: Roget's Thesaurus, 1911 edition (public domain, via Project Gutenberg eBook #10681).

Related questions

Reverse-dictionary questions

Definition-first questions whose answer is infinitesimal.

Sources