pericytherion means Periapsis around Venus. Lexicurio rates it Rare gem — a strength score of 82 out of 100.
noun
- Periapsis around Venus.“this situation is illustrated in Figure 4, where the pericytherion radius 𝑟𝑝, the apocytherion radius 𝑟𝑎, and the mean radius of Venus 𝑅𝑉 are indicated.”