année-lumière (L20331)
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(L20331)
Statements
Identifiers
Senses
L20331-S1
English | unit of length used to express astronomical distances, defined as the distance that light travels in a vacuum in one year |
Statements about L20331-S1
Forms
L20331-F1
Statements about L20331-F1
L20331-F2
Statements about L20331-F2
L20331-F3