| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024peta-, - a combining form used in the names of units of measure equal to one quadrillion (1015) of a given base unit.
- origin, originally uncertain
- a combining form used in the names of units of measure equal to one quadrillion (1015) of a given base unit:petabyte.
- origin, originally uncertain
Collins Concise English Dictionary © HarperCollins Publishers:: peta- prefix - denoting 1015: petametres
Symbol: P
Etymology: 20th Century: so named because it is the SI prefix after tera-; on the model of penta-, the prefix after tetra- |