| 单词 | peta |
| 释义 | PETA in British English (ˈpɛtə) acronym for People for the Ethical Treatment of Animals peta- in British Englishprefix denoting 1015 petametres Symbol: P Word origin C20: so named because it is the SI prefix after tera-; on the model of penta-, the prefix after tetra-peta- in American English (ˈpɛtə) one quadrillion; the factor 1015 peta- in American Englishprefix a combining form used in the names of units of measure equal to one quadrillion (1015) of a given base unit Word origin [orig. uncert.] |
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