pericenter

As a noun pericenter

is (astronomy) the periapsis, the point of closest approach of an astronomical object in an elliptical orbit to its center of attraction.

As a letter x is

the twenty-fourth letter of the.

As a symbol x is

voiceless velar fricative.

As a noun pericenter

is (astronomy) the periapsis, the point of closest approach of an astronomical object in an elliptical orbit to its center of attraction.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between percenter and pericenter

is that percenter is a member of a group that forms a specified percentage of the population while pericenter is (astronomy) the periapsis, the point of closest approach of an astronomical object in an elliptical orbit to its center of attraction.

As nouns the difference between taxonomy and pericenter

is that taxonomy is the science or the technique used to make a classification while pericenter is (astronomy) the periapsis, the point of closest approach of an astronomical object in an elliptical orbit to its center of attraction.