standard ruler
standard ruler · standard rulers
Any astronomical object of known diameter whose distance can then be calculated from…Any astronomical object of known diameter whose distance can then be calculated from the angle it subtends
Meaning
1 sensesAny astronomical object of known diameter whose distance can then be calculated from the angle it subtends
Forms
plural: standard rulers| Singular | standard ruler |
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| Plural | standard rulers |
regular
Word family
1 related wordsRelatedstandard candle