| iota | 1. The ninth letter in the Greek alphabet, ι. 2. In chemistry, denotes the ninth in a series, or the ninth atom from a carboxyl group or other functional group. 3. A tiny or minute amount. (05 Mar 2000) |
|---|---|
| iotacism | A speech defect marked by the frequent substitution of a long e sound (that of the Greek iota) for other vowels. Origin: G. Iota, the letter &iota. (05 Mar 2000) |