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picofarad

American  
[pee-koh-far-uhd, -ad, pahy-] / ˈpi koʊˌfær əd, -æd, ˈpaɪ- /

noun

Electricity.
  1. one trillionth of a farad. pF


picofarad British  
/ -æd, ˈpiːkəʊˌfærəd /

noun

  1.  pF.  a million millionth of a farad; 10 –12 farad

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of picofarad

First recorded in 1925–30; pico- + farad