9 letters · 11 points in Scrabble
noun a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite
originCoined by British chemist Humphry Davy in 1808, after the earlier term strontianite, for the name of the Scottish town Strontian.
Etymology from Wiktionary, CC BY-SA 3.0