rontosecond

English edit

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Etymology edit

ronto- +‎ second

Pronunciation edit

(General American) IPA^(key): /ˈɹɑn.toʊˌsɛk.(ə)nd/

Noun edit

rontosecond (plural rontoseconds)

(metrology) An SI unit of time equal to 10⁻²⁷ seconds. Symbol: rs

Synonyms edit

rs (abbreviation)

Further reading edit

Orders of magnitude (time) § Less than one second on Wikipedia.Wikipedia

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