Assertion: meter | /r/DefinedAs | the length of the path
Facets:
value: officially
type: MANNER
value: since 1983
type: TEMPORAL
Source sentences:
text: The metre is defined as the length of the path travelled by light in a vacuum in 1/299 792 458 of a second.
text: Since 1983, the metre has been officially defined as the length of the path travelled by light in a vacuum during a time interval of 1/299,792,458 of a second.