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What does y stand for?

y stands for Yocto (prefix for one septillionth, 10^ -24)

This definition appears very frequently and is found in the following Acronym Finder categories:

  • Information technology (IT) and computers
  • Science, medicine, engineering, etc.

See other definitions of y

Samples in periodicals archive:

A septillionth, a decimal point followed by 24 zeroes, takes the yocto prefix under an international system adopted in 1991.
Yocto is the smallest prefix recognised by the International System of Units (SI), which was first developed in the 18th century.