Definition of picosecond
: one trillionth of a second
Recent Examples of picosecond from the Web
The whole process, the paper claims, happens in less than 5 picoseconds, or 5 trillionths of a second.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'picosecond.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of picosecond
International Scientific Vocabulary
First Known Use: circa 1962See Words from the same year
Medical Definition of picosecond
: one trillionth of a second—abbreviation ps
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