yotta-

English - English

Definition of yotta- in English English dictionary

In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 1024. Symbol: Y

One septillion (10): yottahertz

Antonyms

yocto-

Etymology

() Ancient Greek ὀκτώ (oktō, “eight”), for the eighth order of 103. The consonants ct are reduced to tt as in Italian, by analogy with peta-; the final a conforms to the finals vowel of the SI series from mega- upwards; the letter y was added, as the second term in a series running through the alphabet backwards (from zetta-).