a combining form used in the names of units of measure equal to one septillion (1024) of a given base unit.
- yosemite falls,
- yosemite national park,
- you bet your ass,
- you better believe it
Origin of yotta-
possibly an alteration of Greek iôta, ninth letter of the Greek alphabet (representing y)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019