t 1 o 1 k 5 a 1 m 3 a 1 k 5
7 letters · 17 points in Scrabble
Meaning
noun a doughnut-shaped chamber used in fusion research; a plasma is heated and confined in a magnetic bottle
originBorrowed from Russian токама́к (tokamák), an acronym of то(роида́льная) ка́(мера) (с) ма(гни́тными) к(ату́шками) (to(roidálʹnaja) ká(mera) (s) ma(gnítnymi) k(atúškami), “toroidal chamber with magnetic coils”).
Etymology from Wiktionary, CC BY-SA 3.0