Meanings
- The escape velocity of the Solar System (interstellar speed).
Synonyms & antonyms
nounThe escape velocity of a star system.
Origin
From third + cosmic + velocity, from being the next threshold velocity greater than the second cosmic velocity.
Full word history & related roots →Cite this entry
third cosmic velocity. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/third%20cosmic%20velocity
“third cosmic velocity.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/third%20cosmic%20velocity. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “third cosmic velocity,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/third%20cosmic%20velocity.
Source: third cosmic velocity on Wiktionary, CC BY-SA 4.0.