terrestrial
"The Inner Planets" is the common term for the four planets closest to our sun.
The term used to describe the Sun and the planets that orbit around it is "solar system."
Nibble
Mercury venus earth mars The inner solar system?
The term `gas giant` is used to describe a type of planet in itself, large planets further out from the sun that are mainly made from hydrogen and helium.
Menarche is the term used to describe a woman's first period.
vulnerable
Granulation
recession
The first four terms are 3 9 27 81 and 729 is the 6th term.
"solar system" is the term used to describe planets orbiting a star. We know that planets also orbit binary and tertiary star systems, these would be different kinds of solar systems.
The term "Gothic" was first used in the 16th century to describe architecture that was considered barbaric or not in the classical style. It was used as a derogatory term before being embraced in the 18th century to describe a specific style of art and architecture.