femtometre en · NOUN
Etymology
Etymology tree Proto-Indo-European *pénkʷe Proto-Germanic *fimf Proto-Indo-European *déḱm̥ Proto-Germanic *tehun Proto-Germanic *fimftehun Old Norse fimmtánder. Danish femtender. English femto- English metre English femtometre From femto- + metre.
Meanings
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An SI unit of length equal to 10⁻¹⁵ metres. Symbol: fm
Holonyms: picometre < nanometre < micrometre < millimetre < centimetre < decimetre < metre < kilometre < megametre < gigametre < terametre < petametre < exametre < zettametre < yottametre < ronnametre < quettametre
Meronyms: yoctometre < zeptometre < attometre
The speed of light is about 0.3 femtometres per yoctosecond.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| femtometres | Number=Plur | lexicographic |
Deriveds
Relateds
Translations (14)
bg фемтоме́тър (10-15 of a metre) · pt femtômetro (10-15 of a metre) · es femtómetro (10-15 of a metre) · tr femtometre (10-15 of a metre) · sv femtometer (10-15 of a metre) · cmn 飛米 /飞米 (10-15 of a metre) · el φεμτόμετρο (10-15 of a metre) · ja フェムトメートル (10-15 of a metre) · ro femtometru (10-15 of a metre) · cs femtometr (10-15 of a metre) · de Femtometer (10-15 of a metre) · ko 펨토미터 (10-15 of a metre) · fr femtomètre (10-15 of a metre) · it femtometro (10-15 of a metre)