heliogram
nounEtymology From helio- + -gram.
1
A message transmitted by a heliograph.
- Derived terms
- spectroheliogram
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
noun
Etymology From helio- + -gram.
A message transmitted by a heliograph.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
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