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Related to infinitesimally: Infinitesimally small


1. Immeasurably or incalculably minute.
2. Mathematics Capable of having values approaching zero as a limit.
1. An immeasurably or incalculably minute amount or quantity.
2. Mathematics A function or variable continuously approaching zero as a limit.

[From New Latin īnfīnītēsimus, infinite in rank, from Latin īnfīnītus, infinite; see infinite.]

in′fin·i·tes′i·mal·ly adv.


[ˌɪnfɪnɪˈtɛsɪməli] adv
infinitesimally small → infinitésimalement petit(e)


adv smaller, better, slowernur ganz geringfügig; smallzum Verschwinden
References in classic literature ?
Now, all our lines are EQUALLY and INFINITESIMALLY thick (or high, whichever you like); consequently, there is nothing in them to lead our minds to the conception of that Dimension.
It would, we reckoned, make four infinitesimally small meals for each of us, enough, say, to support life for a couple of days.
Only by taking infinitesimally small units for observation (the differential of history, that is, the individual tendencies of men) and attaining to the art of integrating them (that is, finding the sum of these infinitesimals) can we hope to arrive at the laws of history.
To study the laws of history we must completely change the subject of our observation, must leave aside kings, ministers, and generals, and the common, infinitesimally small elements by which the masses are moved.
Natural selection can act only by the preservation and accumulation of infinitesimally small inherited modifications, each profitable to the preserved being; and as modern geology has almost banished such views as the excavation of a great valley by a single diluvial wave, so will natural selection, if it be a true principle, banish the belief of the continued creation of new organic beings, or of any great and sudden modification in their structure.
It was he who had kept up an unaccountable and close correspondence with a young lady whose whole letter-bag was intercepted, by the extraordinary trick of photographing his messages infinitesimally small upon the slides of a microscope.
It looks infinitesimally hotter and colder in spots, corresponding to the fluctuations in density of the early universe that led to the clumping of matter into galaxies.
Poisson's ratio is defined as being the ratio between the lateral contraction and the elongation of an isotropic homogenous material in an infinitesimally small extension.
This hypothesis that all matter and energy are derived from strings of energy, infinitesimally small, and that there are as many as 11 dimensions in the universe in addition to our familiar space and time, would have seemed bizarre speculation to us, as it does to many physicists today.
Naturally, the number of lots on offer at any one time is infinitesimally small when compared to that of giant eBay.
It should gravely concern all Members that the future Chair of the Senate Select Committee on Intelligence (SSCI) is planning to focus on terrorism, which is a tactic, not an enemy, and which -- in the context of the ten threats, twelve policies, and eight challengers from Brazil to Venezuela -- represents an infinitesimally small and consequently largely irrelevant topic that will distract this Committee from actually being effective.
Given the early evening hour, the road conditions and the weather the chances of there being safety problems on the motorway would have been infinitesimally small.