ronnameter
English edit
Etymology edit
Noun edit
ronnameter (plural ronnameters)
- US spelling of ronnametre
- The observable universe is about one ronnameter in diameter.
- 2022 November 23, Katrina Krämer, “SI units get new prefixes for huge and tiny numbers”, in Chemistry World[1]:
- An electron’s mass is about one rontogram, Jupiter weighs two quettagrams and the diameter of the observable universe is one ronnameter.