standard ruler
nounDefinitions
Any astronomical object of known diameter whose distance can then be calculated from the…
Any astronomical object of known diameter whose distance can then be calculated from the angle it subtends
The neighborhood
Vish — recursive loop
No curated loop yet for standard ruler. Loops are being traced one word at a time while the ingestion pipeline matures.
sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA