first cosmic velocity

English

Etymology

first +‎ cosmic +‎ velocity, from being the first velocity greater than that able to be held upon the Earth, thus entering the realm of the Cosmos.

Proper noun

first cosmic velocity

1. The velocity in a circular orbit about the Earth.

Noun

first cosmic velocity (plural first cosmic velocities)

1. The velocity in a circular orbit.

Synonyms

• first cosmic speed

Coordinate terms

• second cosmic velocity / second cosmic speed
• third cosmic velocity / third cosmic speed