t 1 a 1 u 1 o 1 n 1
5 letters · 5 points in Scrabble
Meaning
noun a lepton of very great mass
originFrom tau + -on, named after the Greek letter ταῦ (taû), the initial letter of Ancient Greek τρίτος (trítos, “third”), being the third lepton discovered.
Etymology from Wiktionary, CC BY-SA 3.0