iota Meaning, Definition & Usage

  1. noun a tiny or scarcely detectable amount
    smidge; smidgeon; scintilla; smidgin; shred; whit; smidgen; tittle.
  2. noun the 9th letter of the Greek alphabet

WordNet

I*o"ta noun
Etymology
L., fr. Gr. . See Jot.
Definitions
  1. The ninth letter of the Greek alphabet (ι) corresponding with the English i.
  2. A very small quantity or degree; a jot; a particle. from iota being the smallest letter
    They never depart an iota from the authentic formulas of tyranny and usurpation. Burke.
    we use a following comma to represent the iota subscript within Greek transcriptions. See the "readme.fnt" file for complete description of Greek transliterations.

Webster 1913