Yestersol

adv, noun

adv, noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The sol (Martian day) before the present one.

    ""We'll basically be waking up in the Mars morning, which will be 47 minutes later each day, and uploading our commands from 'yestersol,'" he said."

Adverb
  1. 1
    On the sol (Martian day) before the present one. not-comparable

    "But yestersol he took Mother into the old middle-pressure greenhouse (the little one they built when they first arrived here) and got her involved in a long discussion."

Example

More examples

"But yestersol he took Mother into the old middle-pressure greenhouse (the little one they built when they first arrived here) and got her involved in a long discussion."

Etymology

From yester- + sol (“Martian day”), by analogy with yesterday.

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