| 释义 | femtometreenUKThesaurus
 EncyclopediaSeemetre| Noun | 1. | femtometre - a metric unit of length equal to one quadrillionth of a meterfemtometer, fermimetric linear unit - a linear unit of distance in metric termsmicromicron, picometer, picometre - a metric unit of length equal to one trillionth of a meter | 
 femtometreenUKRelated to femtometre: Femtometers
 Synonyms for femtometrenoun a metric unit of length equal to one quadrillionth of a meterSynonymsRelated Wordsmetric linear unitmicromicronpicometerpicometre
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