Home › Words › E › exumbrellaexumbrellaexumbrella means the outer surface of the umbrella of a jellyfish.Among words judged in Lexicurio's Arena, exumbrella ranks #36,606 of 42,747 for Qualifying.EtymologyFrom ex- + umbrella.nounThe outer surface of the umbrella of a jellyfish.Definitions & examples from Wiktionary (CC BY-SA 3.0).