Tt (Noun)
Meaning 1
A republic in the western central Pacific Ocean in association with the United States.
Classification
Nouns denoting spatial position.
Synonyms
Meaning 2
A country scattered over Micronesia with a constitutional government in free association with the United States; achieved independence in 1986.
Classification
Nouns denoting spatial position.
Synonyms
Meaning 3
(astronomy) a measure of time defined by Earth's orbital motion; terrestrial time is mean solar time corrected for the irregularities of the Earth's motions.
Classification
Nouns denoting time and temporal relations.
Examples
- Astronomers use terrestrial time to calculate the positions of celestial objects in the sky.
- The International System of Units defines terrestrial time as a continuous time scale that is independent of the Earth's rotation.
- Terrestrial time is used as a reference frame for astronomical observations and space missions.
- The difference between terrestrial time and coordinated universal time is about 1 minute over a period of 100 years.
- Scientists use terrestrial time to study the long-term variations in the Earth's rotation and orbit.