periuranium
/ˌpɛrɪjʊˈreɪnɪəm/Astronomy rare
noun
The point in the path of a celestial object or spacecraft orbiting (or passing) Uranus at which it is nearest to the planet.
Origin
Late 19th century; earliest use found in The New English Dictionary. From peri- + Uranus + scientific Latin -ium, after perisaturnium.
- be one's life
- be one's own boss
- be one's (own) lookout
- be one's own man (or woman)
- be one's own master
- be one's own person
- be one's own woman
- be one's own worst enemy
- be on firm ground
- be on nodding terms
- be on one's best behaviour
- be on one's mettle
- be on one's way
- be on (or on to) a loser
- be on someone's (own) head
- be on the lookout (or keep a lookout) for
- be on the offensive
- be on the rag
- be on the take
- be on the watch
- be on the wrong tram
- be on to a good thing
- be on to someone
- be on to something
- be open to debate