Definition of translunar in English:

translunar

Syllabification: trans·lu·nar
Pronunciation: /transˈlo͞onər, tranz-
 
/

adjective

Of, relating to, or denoting the trajectory of a spacecraft traveling between the earth and the moon.
More example sentences
  • The upper stage is jettisoned after the translunar injection burn, leaving the Soyuz and logistics module to complete the six-day round-trip mission.
  • He sent men out of Earth's orbit for the first time with the command, ‘You are go for TLI’ (translunar injection).
  • The spacecraft breaks out of Earth's orbit and establishes a translunar trajectory, or path toward the Moon.

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Pronunciation: grəˈmɛːrɪən
noun
a person who studies and writes about grammar