Meanings
plural filtergrams
- astronomyA photograph of the sun at a particular frequency range (by means of a variable filter).
Origin
Cite this entry
filtergram. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/filtergram
“filtergram.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/filtergram. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “filtergram,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/filtergram.
Source: filtergram on Wiktionary, CC BY-SA 4.0.