9 letters · 13 points in Scrabble
noun an instrument that measures heat radiation; extremely sensitive
originEtymology tree Proto-Indo-European *gʷelH-der. Proto-Hellenic *gʷəlnō Ancient Greek βᾰ́λλω (bắllō) Ancient Greek -ᾱ (-ā) Ancient Greek -η (-ē) Ancient Greek βολή (bolḗ) Proto-Indo-European *meh₁- Proto-Indo-European *-tḗr Proto-Indo-European *-trom Proto-Hellenic *-tron Ancient Greek -τρον (-tron) Ancient Greek μέτρον (métron)der. English -meter English bolometer Coined in 1878 by Samuel Pierpont…
Etymology from Wiktionary, CC BY-SA 3.0