Meaning of gigaannum | Babel Free

Definitions

Alternative spelling of giga-annum (“gigayear, a billion years”).

alt-of, alternative

Examples

“Studies of the Earth’s processes, phenomena, and origins are unique in the physical sciences for their need⟳ to observe⟳ and measure⟳ past events over spatial and temporal scales that range from the micron and second to the astronomical unit and gigaannum.”

“The oldest materials ever found in the Solar System occur⟳ in meteorites ~4.57 Ga (gigaannum or billion years ago) of age, marking the starting point⟳ for the condesation of the first solids in our Solar System.”

“It is noteworthy that biological phenomena occur⟳ at scales ranging from nanometers to megameters, and from nanoseconds to gigaannums.”

CEFR level