Helio

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A heliotrope (surveying instrument).

    "A helio or sun-reflecting signal was evidently the desideratum."

Synonyms

All synonyms
heliotrope

Example

More examples

"A helio or sun-reflecting signal was evidently the desideratum."

Etymology

Clipping of heliotrope.

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