Lewisites is a 9 letter English word. It's valid Scrabble word worth 11 points. It's valid Words with friends word worth 12 points.
You can make 187 anagrams from letters in lewisites (eeiilsstw).
1920-25; named after Winford Lee Lewis (1878-1943), American chemist who developed it; see -ite1
It contains a specimen of the deadliest poison ever known, 'lewisite,' the product of an American scientist.
That fellow would get us with his lewisite gas before we could discover and destroy him.