Pleustons is a 9 letter English word. It's valid Scrabble word worth 10 points. It's valid Words with friends word worth 14 points.
You can make 494 anagrams from letters in pleustons (elnopsstu).
1940-45; pleus- (Greek pleûs(is) sailing, or pleus- aorist stem of pleîn to sail, go by sea) + -ton, on the model of nekton, plankton