from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Immeasurably or incalculably minute.
- adj. Mathematics Capable of having values approaching zero as a limit.
- n. An immeasurably or incalculably minute amount or quantity.
- n. Mathematics A function or variable continuously approaching zero as a limit.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Incalculably, exceedingly, or immeasurably minute; vanishingly small.
- adj. Of or pertaining to values that approach zero as a limit.
- adj. Very small.
- n. A non-zero quantity whose magnitude is smaller than any positive number (by definition it is not a real number).
from the GNU version of the Collaborative International Dictionary of English
- adj. Infinitely or indefinitely small; less than any assignable quantity or value; very small.
- n. An infinitely small quantity; that which is less than any assignable quantity.
from The Century Dictionary and Cyclopedia
- Infinitely or indefinitely small; less than any assignable quantity.
- n. In mathematics, a fictitious quantity so small that by successive additions to itself no sensible quantity, such as the unit of quantity, could ever be generated.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (mathematics) a variable that has zero as its limit
- adj. infinitely or immeasurably small
From New Latin īnfīnītēsimus, infinite in rank, from Latin īnfīnītus, infinite; see infinite.(American Heritage® Dictionary of the English Language, Fourth Edition)