Periareion

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The point in an elliptical orbit around Mars that is closest to Mars.

    "Mars orbit insertion requires a nominal hyperbolic periareion delta V of 2,491 m/s, at 300 km altitude."

Example

More examples

"Mars orbit insertion requires a nominal hyperbolic periareion delta V of 2,491 m/s, at 300 km altitude."

Etymology

From peri- + areo- + -ion.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.